FIELD OF INVENTION
[001] The present disclosure is directed to a personal care cleansing compositions. In particular, it relates to personal care skin cleansing compositions comprising a combination of specific surfactants in specific proportions to provide skin benefits like mildness along high transparency of the composition. The present disclosure is further directed to a process of preparation of the cleansing composition.
BACKGROUND OF THE INVENTION
[002] Transparent cleansing compositions have aesthetic appeal, and are also considered to be milder than opaque cleansing compositions. Transparent cleansing compositions that are available in non-solid form e.g. in liquid or gel form also have high consumer demand and are often used for specialized applications like hand wash and face wash etc.
[003] Hand wash compositions are typically formulated in order to provide hygiene, excellent cleansing, good foaming, and good germ killing. The hand washes are made either from soap or surfactant. In general, the surfactant systems used to make the hand wash products include anionic surfactant/s, amphoteric surfactant/s and non-ionic surfactant/s. Additionally, the hand wash may consist of moisturizers and other skin benefit agents to promote mildness to the skin.
[004] Surfactant based cleansing composition comprising non-ionic surfactant such as alkyl glucoside are well known in the art, for instance: WO 2003028694 discloses the use of alkyl glucosides in order to obtain/increase the selectivity of cleansing preparations. Further, US 8877184 discloses a cleansing composition comprising surfactants comprising decyl glucoside and cocoglucoside, wherein the decyl glucoside is present in an amount by weight that is 1.5 to 2.5 times the weight of coco glucoside.
[005] The problems associated with the existing surfactant based hand wash compositions include haziness/opacity. These compositions require additional ingredients such as solubilizers or transparency enhancers to make the composition

transparent. Additional ingredients such as solubilizer, or transparency enhancer are
sometimes potentially toxic, particularly the lower grade versions which are typically
used in cosmetics.
[006] Accordingly, there remains a need for hand wash composition which is
transparent in appearance without the use of known solubilizers /transparency
enhancers.
SUMMARY OF THE INVENTION
[007] In an aspect of the present disclosure, there is provided a cleansing composition comprising: (a) at least one alkyl polyglucoside; (b) at least one betaine compound; (c) at least one thickener; and (d) at least one surfactant, wherein the at least one alkyl polyglucoside to the at least one betaine compound weight ratio is in the range of 1:0.5-1:2.5.
[008] In an aspect of the present disclosure, there is provided a process for the preparation of cleansing composition, comprising (a) at least one alkyl polyglucoside; (b) at least one betaine compound; (c) at least one thickener; and (d) at least one surfactant, wherein the at least one alkyl polyglucoside to the at least one betaine compound weight ratio is in the range of 1:0.5-1:2.5 said process comprising the steps of the steps of: (a) obtaining at least one alkyl polyglucoside; (b) obtaining at least one betaine compound; (c) obtaining at least one thickener; (d) obtaining at least one surfactant; (e) contacting the at least one alkyl polyglucoside, at least one betaine compound, at least one thickener, and at least one surfactant to obtain the composition. [009] These and other features, aspects, and advantages of the present subject matter will be better understood with reference to the following description and appended claims. This summary is provided to introduce a selection of concepts in a simplified form. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.
DETAILED DESCRIPTION OF THE INVENTION

[0010] Those skilled in the art will be aware that the present disclosure is subject to variations and modifications other than those specifically described. It is to be understood that the present disclosure includes all such variations and modifications. The disclosure also includes all such steps, features, compositions, and compounds referred to or indicated in this specification, individually or collectively, and any and all combinations of any or more of such steps or features.
Definitions
[0011] For convenience, before further description of the present disclosure, certain
terms employed in the specification, and examples are delineated here. These
definitions should be read in the light of the remainder of the disclosure and
understood as by a person of skill in the art. The terms used herein have the meanings
recognized and known to those of skill in the art, however, for convenience and
completeness, particular terms and their meanings are set forth below.
[0012] The articles “a”, “an” and “the” are used to refer to one or to more than one
(i.e., to at least one) of the grammatical object of the article.
[0013] The terms “comprise” and “comprising” are used in the inclusive, open sense,
meaning that additional elements may be included. It is not intended to be construed as
“consists of only”.
[0014] Throughout this specification, unless the context requires otherwise the word
“comprise”, and variations such as “comprises” and “comprising”, will be understood
to imply the inclusion of a stated element or step or group of element or steps but not
the exclusion of any other element or step or group of element or steps.
[0015] The term “including” is used to mean “including but not limited to”.
“Including” and “including but not limited to” are used interchangeably.
[0016] Unless defined otherwise, all technical and scientific terms used herein have
the same meaning as commonly understood by one of ordinary skill in the art to which
this disclosure belongs. Although any methods and materials similar or equivalent to
those described herein can be used in the practice or testing of the disclosure, the

preferred methods, and materials are now described. All publications mentioned herein are incorporated herein by reference.
[0017] The present disclosure is not to be limited in scope by the specific embodiments described herein, which are intended for the purposes of exemplification only. Functionally-equivalent products, compositions, and methods are clearly within the scope of the disclosure, as described herein.
[0018] As discussed above there is a need felt in the art to ensure better cleaning by a surfactant based composition, at the same time maintaining the desired lather, mildness and improving the transparency of the composition without the usage of additional ingredients such as solubilizers or transparency enhancers. It has been found by way of the present invention that the addition of surfactant, cocamidopropyl betaine in certain ratio to the combination of other surfactants (decyl glucoside and lauryl glucoside) ensures desired transparency to the composition and therefore high consumer appeal. [0019] In an embodiment of the present disclosure, there is provided a cleansing composition comprising: (a) at least one alkyl polyglucoside; (b) at least one betaine compound; (c) at least one thickener; and (d) at least one surfactant, wherein the at least one alkyl polyglucoside to the at least one betaine compound weight ratio is in the range of 1:0.5-1:2.5.
[0020] In an embodiment of the present disclosure, there is provided a cleansing composition as described herein, wherein the at least one alkyl polyglucoside is selected from the group consisting of lauryl glucoside, decyl glucoside, and combinations thereof.
[0021] In an embodiment of the present disclosure, there is provided a cleansing composition as described herein, wherein the alkyl polyglucoside is consisting combination of lauryl glucoside and decyl glucoside.
[0022] In an embodiment of the present disclosure, there is provided a cleansing composition as described herein, wherein the at least one betaine compound is selected from the group consisting of cocamidopropylbetaine (CAPB), coco betaine, behenyl betaine, capryl/capramidopropyl betaine, lauryl betaine, and combinations thereof.

[0023] In an embodiment of the present disclosure, there is provided a cleansing
composition as described herein, wherein the at least one betaine compound is
cocamidopropyl betaine (CAPB).
[0024] In an embodiment of the present disclosure, there is provided a cleansing
composition as described herein, wherein the at least one thickener is selected from the
group consisting of cocamide monoethanolamine (cocamide MEA), hydroxypropyl
methyl cellulose, acrylic acid polymers, hydroxypropyl cellulose, methylcellulose,
carboxymethyl cellulose, hydroxyethyl cellulose, and combinations thereof.
[0025] In an embodiment of the present disclosure, there is provided a cleansing
composition as described herein, wherein the at least one thickener is cocamide
monoethanolamine (cocamide MEA).
[0026] In an embodiment of the present disclosure, there is provided a cleansing
composition as described herein, wherein the surfactant is selected from the group
consisting of disodium laureth sulfosuccinate, sodium laureth sulphate, and
combinations thereof.
[0027] In an embodiment of the present disclosure, there is provided a cleansing
composition as described herein, wherein the surfactant is disodium laureth
sulfosuccinate.
[0028] In an embodiment of the present disclosure, there is provided a cleansing
composition comprising: (a) at least one alkyl polyglucoside ; (b) at least one betaine
compound; (c) at least one thickener; (d) at least one surfactant; and (e) at least one
cosmetically acceptable excipient selected from the group consisting of humectants,
salts/ electrolytes, emollients, chelating agents, preservatives, antioxidants, and
combinations thereof, wherein the at least one alkyl polyglucoside to the at least one
betaine compound weight ratio is in the range of 1:0.5-1:2.5.
[0029] In an embodiment of the present disclosure, there is provided a cleansing
composition comprising (a) at least one alkyl polyglucoside selected from the group
consisting of lauryl glucoside, decyl glucoside, and combinations thereof; (b) at least
one betaine compound selected from the group consisting of cocamidopropylbetaine

(CAPB), coco betaine, behenyl betaine, capryl/capramidopropyl betaine, lauryl betaine, and combinations thereof; (c) at least one thickener selected from the group consisting of cocamide monoethanolamine (cocamide MEA), hydroxypropyl methyl cellulose, acrylic acid polymers, hydroxypropyl cellulose, methylcellulose, carboxymethyl cellulose, hydroxyethyl cellulose, and combinations thereof; (d) at least one surfactant selected from the group consisting of disodium laureth sulfosuccinate, sodium laureth sulphate, and combinations thereof; (e) at least one humectant having weight percentage in the range of 0.05-5% with respect to the composition, and selected from the group consisting of glycerin, polysorbates, sorbitol, glycols, and combinations thereof; (f) at least one salt having weight percentage in the range of 0.01-3% with respect to the composition, and selected from the group consisting of sodium chloride, alkali metal salts of acids selected from the group consisiting of citric acid, carbonic acid, hydrochloric acid, succinic acid, adipic acid, glutaric acid, and combinations thereof, ammonium salts of acids selected from the group consisiting of citric acid, carbonic acid, hydrochloric acid, succinic acid, adipic acid, glutaric acid, and combinations thereof, sodium citrate, potassium citrate, sodium formate, potassium formate, sodium ethylene diamine tetraacetate, potassium ethylene diamine tetraacetate, and combinations thereof; (g) at least one emollient having weight percentage in the range of 0.1-10% with respect to the composition, and selected from the group consisting of glycol distearate, silicone oil, butyl myristate, cetyl palmitate, decyl oleate, glyceryl laurate, glyceryl ricinoleate, glyceryl stearate, glyceryl isostearate, hexyl laurate, isobutyl palmitate, isocetyl stearate, isopropyl isostearate, isopropyl laurate, isopropyl linoleate, isopropyl myristate, isopropyl palmitate, isopropyl stearate, propylene glycol monolaurate, propylene glycol ricinoleate, propylene glycol stearate, and propylene glycol isostearate, palmitic acid, stearic acid, cetyl alcohol, lauryl lactate, myristyl lactate, petrolatum, mineral oil, microcrystalline waxes, paraffins, and combinations thereof; (h) at least one chelating agent having weight percentage in the range of 0.001-1% with respect to the composition, and selected from the group consisting of ethylene diamine tetraacetic acid (EDTA),

nitrilotetraacetic acid, β-alaninediacetic acid, ethylenediaminosuccinic acid, aminotrimethylenephosphoric acid, serinediaacetic acid, asparaginediacetic acid, methylglycinediacetic acid, diethylenetriamine pentaacetic acid, cyclohexanediamine tetraacetic acid, triethanolamineethylenediamine tetraacetic acid, ethylenetriamine pentaacetic acid, tetraethylenetriamine, ethyl enediamine, diethyltriamine, and combinations thereof; (i) at least one preservative having weight percentage in the range of 0.005-1% with respect to the composition, and selected from the group consisting of DMDM hydantoin, methylchloroisothiazolinone (and) methylisothiazolinone, phenoxyethanol, parabens, and combinations thereof; and (j) at least one antioxidant having weight percentage in the range of 0.005-1% with respect to the composition, and selected from the group consisting of butylated hydroxytoluene, tocopheryl acetate, vitamin E, and combinations thereof, wherein the at least one alkyl polyglucoside to the at least one betaine compound weight ratio is in the range of 1:0.5-1:2.5.
[0030] In an embodiment of the present disclosure, there is provided a cleansing composition as described herein, further comprising at least one cosmetically acceptable excipient selected from the group consisting of humectants, salts/ electrolytes, emollients, chelating agents, preservatives, antioxidants, and combinations thereof.
[0031] In an embodiment of the present disclosure, there is provided a cleansing composition as described herein, wherein the humectant has a weight percentage in the range of 0.05-5% with respect to the composition.
[0032] In an embodiment of the present disclosure, there is provided a cleansing composition as described herein, wherein the humectant is selected from the group consisting of glycerin, polysorbates, sorbitol, glycols, and combinations thereof. [0033] In an embodiment of the present disclosure, there is provided a cleansing composition as described herein, wherein the humectant is glycerin.

[0034] In an embodiment of the present disclosure, there is provided a cleansing composition as described herein, wherein salt/electrolyte has a weight percentage in the range of 0.01-3% with respect to the composition.
[0035] In an embodiment of the present disclosure, there is provided a cleansing composition as described herein, wherein salt/electrolyte is selected from the group consisting of sodium chloride, alkali metal salts of acids selected from the group consisiting of citric acid, carbonic acid, hydrochloric acid, succinic acid, adipic acid, glutaric acid, and combinations thereof, ammonium salts of acids selected from the group consisiting of citric acid, carbonic acid, hydrochloric acid, succinic acid, adipic acid, glutaric acid, and combinations thereof, sodium citrate, potassium citrate, sodium formate, potassium formate, sodium ethylene diamine tetraacetate, potassium ethylene diamine tetraacetate, and combinations thereof.
[0036] In an embodiment of the present disclosure, there is provided a cleansing composition as described herein, wherein salt is sodium chloride.
[0037] In an embodiment of the present disclosure, there is provided a cleansing composition as described herein, wherein emollient has a weight percentage in the range of 0.1 to 10% with respect to the composition.
[0038] In an embodiment of the present disclosure, there is provided a cleansing composition as described herein, wherein emollient is selected from the group consisting of glycol distearate, silicone oil, butyl myristate, cetyl palmitate, decyl oleate, glyceryl laurate, glyceryl ricinoleate, glyceryl stearate, glyceryl isostearate, hexyl laurate, isobutyl palmitate, isocetyl stearate, isopropyl isostearate, isopropyl laurate, isopropyl linoleate, isopropyl myristate, isopropyl palmitate, isopropyl stearate, propylene glycol monolaurate, propylene glycol ricinoleate, propylene glycol stearate, and propylene glycol isostearate, palmitic acid, stearic acid, cetyl alcohol, lauryl lactate, myristyl lactate, petrolatum, mineral oil, microcrystalline waxes, paraffins, and combinations thereof.

[0039] In an embodiment of the present disclosure, there is provided a cleansing
composition as described herein, wherein chelating agent has a weight percentage in
the range of 0.001 to 1% with respect to the composition.
[0040] In an embodiment of the present disclosure, there is provided a cleansing
composition as described herein, wherein the chelating agent is selected from the
group consisting of ethylene diamine tetraacetic acid (EDTA), nitrilotetraacetic acid,
β-alaninediacetic acid, ethylenediaminosuccinic acid, aminotrimethylenephosphoric
acid, serinediaacetic acid, asparaginediacetic acid, methylglycinediacetic acid,
diethylenetriamine pentaacetic acid, cyclohexanediamine tetraacetic acid,
triethanolamineethylenediamine tetraacetic acid, ethylenetriamine pentaacetic acid,
tetraethylenetriamine, ethylenediamine, diethyltriamine, and combinations thereof.
[0041] In an embodiment of the present disclosure, there is provided a cleansing
composition as described herein, wherein the chelating agent is ethylene diamine
tetraacetic acid (EDTA).
[0042] In an embodiment of the present disclosure, there is provided a cleansing
composition as described herein, wherein preservative has a weight percentage in the
range of 0.005 to 1% with respect to the composition.
[0043] In an embodiment of the present disclosure, there is provided a cleansing
composition as described herein, wherein the preservative is selected from the group
consisting of DMDM hydantoin, methylchloroisothiazolinone (and)
methylisothiazolinone, phenoxyethanol, parabens, and combinations thereof.
[0044] In an embodiment of the present disclosure, there is provided a cleansing
composition as described herein, wherein the preservative is
methylchloroisothiazolinone (and) methylisothiazolinone.
[0045] In an embodiment of the present disclosure, there is provided a cleansing
composition as described herein, wherein antioxidant has a weight percentage in the
range of 0.005 to 1% with respect to the composition.
[0046] In an embodiment of the present disclosure, there is provided a cleansing
composition as described herein, wherein the antioxidant is selected from the group

consisting of butylated hydroxytoluene, tocopheryl acetate, vitamin E, and combinations thereof.
[0047] In an embodiment of the present disclosure, there is provided a cleansing composition as described herein, wherein the antioxidant is butylated hydroxytoluene. [0048] In an embodiment of the present disclosure, there is provided a cleansing composition comprising (a) at least one alkyl polyglucoside having weight percentage in the range of 0.2 - 20% with respect to the composition; (b) at least one betaine compound having weight percentage in the range of 2 - 10% with respect to the composition; (c) at least one thickener having weight percentage in the range of 0.1 -5% with respect to the composition; and (d) at least one surfactant having weight percentage in the range of 0.1 - 10% with respect to the composition, wherein the at least one alkyl polyglucoside to the at least one betaine compound weight ratio is in the range of 1:0.5-1:2.5.
[0049] In an embodiment of the present disclosure, there is provided a cleansing composition comprising (a) at least one alkyl polyglucoside having weight percentage in the range of 0.2 - 20% with respect to the composition; (b) at least one betaine compound having weight percentage in the range of 2 - 10% with respect to the composition; (c) at least one thickener having weight percentage in the range of 0.1 -5% with respect to the composition; (d) at least one surfactant having weight percentage in the range of 0.1 - 10% with respect to the composition; and (e) at least one humectant having weight percentage in the range of 0.05-5% with respect to the composition, wherein the at least one alkyl polyglucoside to the at least one betaine compound weight ratio is in the range of 1:0.5-1:2.5.
[0050] In an embodiment of the present disclosure, there is provided a cleansing composition comprising (a) at least one alkyl polyglucoside having weight percentage in the range of 0.2 - 20% with respect to the composition; (b) at least one betaine compound having weight percentage in the range of 2 - 10% with respect to the composition; (c) at least one thickener having weight percentage in the range of 0.1 -5% with respect to the composition; (d) at least one surfactant having weight

percentage in the range of 0.1 - 10% with respect to the composition; (e) at least one humectant having weight percentage in the range of 0.05-5% with respect to the composition; and (f) at least one salt having weight percentage in the range of 0.01-3% with respect to the composition, wherein the at least one alkyl polyglucoside to the at least one betaine compound weight ratio is in the range of 1:0.5-1:2.5.
[0051] In an embodiment of the present disclosure, there is provided a cleansing composition comprising (a) at least one alkyl polyglucoside having weight percentage in the range of 0.2 - 20% with respect to the composition; (b) at least one betaine compound having weight percentage in the range of 2 - 10% with respect to the composition; (c) at least one thickener having weight percentage in the range of 0.1 -5% with respect to the composition; (d) at least one surfactant having weight percentage in the range of 0.1 - 10% with respect to the composition; (e) at least one humectant having weight percentage in the range of 0.05-5% with respect to the composition; (f) at least one salt having weight percentage in the range of 0.01-3% with respect to the composition; and (g) at least one emollient having weight percentage in the range of 0.1 to 10% with respect to the composition, wherein the at least one alkyl polyglucoside to the at least one betaine compound weight ratio is in the range of 1:0.5-1:2.5.
[0052] In an embodiment of the present disclosure, there is provided a cleansing composition comprising (a) at least one alkyl polyglucoside having weight percentage in the range of 0.2 - 20% with respect to the composition; (b) at least one betaine compound having weight percentage in the range of 2 - 10% with respect to the composition; (c) at least one thickener having weight percentage in the range of 0.1 -5% with respect to the composition; (d) at least one surfactant having weight percentage in the range of 0.1 - 10% with respect to the composition; (e) at least one humectant having weight percentage in the range of 0.05-5% with respect to the composition; (f) at least one salt having weight percentage in the range of 0.01-3% with respect to the composition; (g) at least one emollient having weight percentage in the range of 0.1 to 10% with respect to the composition; and (h) at least one chelating

agent chelating agent has a weight percentage in the range of 0.001 to 1%with respect to the composition, wherein the at least one alkyl polyglucoside to the at least one betaine compound weight ratio is in the range of 1:0.5-1:2.5.
[0053] In an embodiment of the present disclosure, there is provided a cleansing composition comprising (a) at least one alkyl polyglucoside having weight percentage in the range of 0.2 - 20% with respect to the composition; (b) at least one betaine compound having weight percentage in the range of 2 - 10% with respect to the composition; (c) at least one thickener having weight percentage in the range of 0.1 -5% with respect to the composition; (d) at least one surfactant having weight percentage in the range of 0.1 - 10% with respect to the composition; (e) at least one humectant having weight percentage in the range of 0.05-5% with respect to the composition; (f) at least one salt having weight percentage in the range of 0.01-3% with respect to the composition; (g) at least one emollient having weight percentage in the range of 0.1 to 10% with respect to the composition; (h) at least one chelating agent having weight percentage in the range of 0.001 to 1% with respect to the composition; and (i) at least one preservative having weight percentage in the range of 0.005 to 1% with respect to the composition, wherein the at least one alkyl polyglucoside to the at least one betaine compound weight ratio is in the range of 1:0.5-1:2.5.
[0054] In an embodiment of the present disclosure, there is provided a cleansing composition comprising (a) at least one alkyl polyglucoside having weight percentage in the range of 0.2 - 20% with respect to the composition; (b) at least one betaine compound having weight percentage in the range of 2 - 10% with respect to the composition; (c) at least one thickener having weight percentage in the range of 0.1 -5% with respect to the composition; (d) at least one surfactant having weight percentage in the range of 0.1 - 10% with respect to the composition; (e) at least one humectant having weight percentage in the range of 0.05-5% with respect to the composition; (f) at least one salt having weight percentage in the range of 0.01-3% with respect to the composition; (g) at least one emollient having weight percentage in

the range of 0.1 to 10% with respect to the composition; (h) at least one chelating agent having weight percentage in the range of 0.001 to 1% with respect to the composition; (i) at least one preservative having weight percentage in the range of 0.005 to 1% with respect to the composition; and (j) at least one antioxidant has a weight percentage in the range of 0.005 to 1% with respect to the composition, wherein the at least one alkyl polyglucoside to the at least one betaine compound weight ratio is in the range of 1:0.5-1:2.5.
[0055] In an embodiment of the present disclosure there is provided a process for the preparation of cleansing composition comprising (a) at least one alkyl polyglucoside; (b) at least one betaine compound; (c) at least one thickener; and (d) at least one surfactant, wherein the at least one alkyl polyglucoside to the at least one betaine compound weight ratio is in the range of 1:0.5-1:2.5, said process comprising the steps of: (i) obtaining at least one alkyl polyglucoside; (ii) obtaining at least one betaine compound; (iii) obtaining at least one thickener; (iv) obtaining at least one surfactant; and (v) contacting the at least one alkyl polyglucoside, at least one betaine compound, at least one thickener, and at least one surfactant to obtain the cleansing composition. [0056] In an embodiment of the present disclosure there is provided a process for the preparation of cleansing composition as described herein, said process comprising the steps of: (i) contacting at least one alkyl polyglucoside, at least one surfactant, at least one chelating agent, and water to obtain a first mixture; (ii) contacting at least one betaine compound and the first mixture to obtain a second mixture; and (iii) contacting second mixture with at least one humectant, at least one salt, at least one emollient, at least one preservative, at least one antioxidant, and combinations thereof to obtain a cleansing composition.
[0057] In an embodiment of the present disclosure there is provided a process for the preparation of cleansing composition as described herein, said process comprising the steps of: (i) contacting at least one alkyl polyglucoside, at least one surfactant, at least one chelating agent, and water to obtain a first mixture; (ii) contacting at least one betaine compound and the first mixture to obtain a second mixture; and (iii) contacting

second mixture with at least one humectant, at least one salt, and combinations thereof to obtain a cleansing composition.
[0058] In an embodiment of the present disclosure there is provided a process for the preparation of cleansing composition as described herein, said process comprising the steps of: (i) contacting at least one alkyl polyglucoside, at least one surfactant, at least one chelating agent, and water to obtain a first mixture; (ii) contacting at least one betaine compound and the first mixture to obtain a second mixture; and (iii) contacting second mixture with at least one humectant, at least one salt, and combinations thereof to obtain a cleansing composition.
[0059] In an embodiment of the present disclosure there is provided a process for the preparation of cleansing composition as described herein, said process comprising the steps of: (i) contacting at least one alkyl polyglucoside, at least one surfactant, at least one chelating agent, and water to obtain a first mixture; (ii) contacting at least one betaine compound and the first mixture to obtain a second mixture; and (iii) contacting second mixture with at least one humectant, at least one salt, at least one emollient, and combinations thereof to obtain a cleansing composition.
[0060] In an embodiment of the present disclosure there is provided a process for the preparation of cleansing composition as described herein, said process comprising the steps of: (i) contacting at least one alkyl polyglucoside, at least one surfactant, at least one chelating agent, and water to obtain a first mixture; (ii) contacting at least one betaine compound and the first mixture to obtain a second mixture; and (iii) contacting second mixture with at least one humectant, at least one salt, at least one preservative, and combinations thereof to obtain a cleansing composition.
[0061] In an embodiment of the present disclosure there is provided a process for the preparation of cleansing composition as described herein, said process comprising the steps of: (i) contacting at least one alkyl polyglucoside, at least one surfactant, at least one chelating agent, and water to obtain a first mixture; (ii) contacting at least one betaine compound and the first mixture to obtain a second mixture; and (iii) contacting

second mixture with at least one humectant, at least one salt, at least one antioxidant, and combinations thereof to obtain a cleansing composition.
[0062] In an embodiment of the present disclosure there is provided a process for the preparation of cleansing composition as described herein, said process comprising the steps of: (i) contacting at least one alkyl polyglucoside, at least one surfactant, at least one chelating agent, and water is carried out at a temperature in the range of 70-80 °C to obtain a first mixture; (ii) contacting at least one betaine compound and the first mixture to obtain a second mixture is carried out at a temperature in the range of 50-60 °C; and (iii) contacting second mixture with at least one humectant, at least one salt, and optionally, at least one emollient, at least one preservative, at least one antioxidant, and combinations thereof is carried out at a temperature in the range of 30-35 °C to obtain a cleansing composition.
EXAMPLES
[0063] The disclosure will now be illustrated with working examples, which is intended to illustrate the working of disclosure and not intended to take restrictively to imply any limitations on the scope of the present disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood to one of ordinary skill in the art to which this disclosure belongs. Although methods and materials similar or equivalent to those described herein can be used in the practice of the disclosed methods and compositions, the exemplary methods, devices and materials are described herein. It is to be understood that this disclosure is not limited to particular methods, and experimental conditions described, as such methods and conditions may apply.
Example 1
Transparent cleansing composition:
[0064] Table 1 below tabulates the ingredients used in the composition as described
hereinabove in the specification along with the working range of the various
ingredients.
[0065] Table 1:

[0066] Briefly, composition A has all the essential ingredients within the ranges as described in this disclosure, along with the weight ratio of decyl glucoside to the lauryl glucoside, and ratio of alkyl glucosides to the cocamidopropyl betaine (CAPB). The cleansing composition was transparent and at the same time maintained the desired lather and mildness.
Example 2
[0067] The cleansing compositions comprising of decyl glucoside and lauryl glucoside generally turn hazy or opaque without the addition of solubilizer. High levels of solubilizers are incorporated in the transparent cleansing compositions which impart transparency to the composition. Experiments were therefore carried out to achieve a transparent cleansing composition comprising decyl glucoside and lauryl glucoside, wherein amount of solubilizer was kept altogether absent from the composition. Results of various experiments that were carried out are summarised in Table 2. [0068] Table 2

[0069] A comparative study of the composition B, and C clearly indicates that despite the absence of solubilizer, , a transparent cleansing composition was attained. Additionally, as illustrated by composition D, attempts to come up with compositions wherein all the essential components were within the ranges as described, except for

the absence of cocamidopropyl betaine, led to a composition which turned out to be opaque. Thus, the inference drawn from the above experiments was that one of the important features which led to the transparency of the cleansing composition, was the addition of cocamidopropyl betaine, (which is generally suggested to be used as a foam booster surfactant, or thickner, or emulsifier) to the combination of decyl glucoside and lauryl glucoside.
[0070] Another inference obtained from composition B, and C was that glycerin (humectant), methylchloroisothiazolinone (and) methylisothiazolinone (preservative), ethylenediammine tetraacetic acid (EDTA; chelating agent), are not essential ingredients, i.e., the presence or absence of these ingredients does not affect the transparency or viscosity of the composition.
Example 3
Process of preparation of transparent cleansing composition:
[0071] The transparent cleansing composition was prepared as follows: decyl
polyglucoside, lauryl glucoside, cocamidomonoethanolamine, disodium laureth
sulfosuccinate, water and optionally ethylenediaminetetraacetic acid were added into a
reaction vessel and heated at a temperature in the range of 70-80 °C to obtain a first
mixture. The first mixture was stirred while maintaining a temperature in the range of
70 °C-80 °C. After complete melting, cocamidopropyl betaine was added to the
reaction mass at a temperature in the range of 50-60 °C to obtain a second mixture.
Further, second mixture was contacted with glycerin followed by sodium chloride, and
optionally PEG 400 was added along with glycerin. Optionally post glycerine addition,
methylisothizolinone (and) methylchloroisothiazolinone, butylated hydroxytoluene,
were added along with fragrance to obtain a cleansing composition.
[0057] Overall, the present disclosure provides us with a surfactant based cleansing
(hand wash) composition which is transparent in appearance without adding the
solubilizers/ transparency enhancers at the same time maintaining the desired lather,
mildness.

[0058] Although the subject matter has been described in considerable detail with reference to certain examples and implementations thereof, other implementations are possible.

I/We Claim:
1. A cleansing composition comprising:
a) at least one alkyl polyglucoside;
b) at least one betaine compound;
c) at least one thickener; and
d) at least one surfactant,
wherein the at least one alkyl polyglucoside to the at least one betaine compound weight ratio is in the range of 1:0.5-1:2.5.
2. The composition as claimed in claim 1, wherein the at least one alkyl polyglucoside is selected from the group consisting of lauryl glucoside, decyl glucoside, and combinations thereof.
3. The composition as claimed in claim 1, wherein the at least one betaine compound is selected from the group consisting of cocamidopropyl betaine (CAPB), coco betaine, behenyl betaine, capryl/capramidopropyl betaine, lauryl betaine, and combinations thereof.
4. The composition as claimed in claim 1, wherein the at least one thickener is selected from the group consisting of cocamide monoethanolamine (cocamide MEA), hydroxypropyl methyl cellulose, acrylic acid polymers, hydroxypropyl cellulose, methylcellulose, carboxymethyl cellulose, hydroxyethyl cellulose, and combinations thereof.
5. The composition as claimed in claim 1, wherein the surfactant is selected from the group consisting of disodium laureth sulfosuccinate, sodium laureth sulphate, and combinations thereof.
6. The composition as claimed in claim 1, further comprising at least one cosmetically acceptable excipient selected from the group consisting of humectants, salts/electrolytes, emollients, chelating agents, preservatives, antioxidants, and combinations thereof.

7. The composition as claimed in claim 6, wherein the humectant has a weight
percentage in the range of 0.05-5% with respect to the composition and the
humectant is selected from the group consisting of glycerin, polysorbates,
sorbitol, glycols, and combinations thereof; the salts/electrolytes has a weight
percentage in the range of 0.01-3% with respect to the composition and the salt
is selected from the group consisting of sodium chloride, alkali metal salts of
acids selected from the group consisiting of citric acid, carbonic acid,
hydrochloric acid, succinic acid, adipic acid, glutaric acid, and combinations
thereof, ammonium salts of acids selected from the group consisiting of citric
acid, carbonic acid, hydrochloric acid, succinic acid, adipic acid, glutaric acid,
and combinations thereof, sodium citrate, potassium citrate, sodium formate,
potassium formate, sodium ethylene diamine tetraacetate, potassium ethylene
diamine tetraacetate, and combinations thereof; the emollient has a weight
percentage in the range of 0.1 to 10% with respect to the composition and the
emollient is selected from the group consisting of glycol distearate, silicone oil,
butyl myristate, cetyl palmitate, decyl oleate, glyceryl laurate, glyceryl
ricinoleate, glyceryl stearate, glyceryl isostearate, hexyl laurate, isobutyl
palmitate, isocetyl stearate, isopropyl isostearate, isopropyl laurate, isopropyl
linoleate, isopropyl myristate, isopropyl palmitate, isopropyl stearate,
propylene glycol monolaurate, propylene glycol ricinoleate, propylene glycol
stearate, and propylene glycol isostearate, palmitic acid, stearic acid, cetyl
alcohol, lauryl lactate, myristyl lactate, petrolatum, mineral oil,
microcrystalline waxes, paraffins, and combinations thereof; the chelating
agent has a weight percentage in the range of 0.001 to 1%with respect to the
composition and the chelating agent is selected from the group consisting of
ethylene diamine tetraacetic acid (EDTA), nitrilotetraacetic acid, β-
alaninediacetic acid, ethylenediaminosuccinic acid,
aminotrimethylenephosphoric acid, serinediaacetic acid, asparaginediacetic acid, methylglycinediacetic acid, diethylenetriamine pentaacetic acid,

cyclohexanediamine tetraacetic acid, triethanolamineethylenediamine
tetraacetic acid, ethylenetriamine pentaacetic acid, tetraethylenetriamine, ethylenediamine, diethyltriamine, and combinations thereof; the preservative has a weight percentage in the range of 0.005 to 1% with respect to the composition and the preservative is selected from the group consisting of DMDM hydantoin, methylchloroisothiazolinone, methylisothiazolinone, phenoxyethanol, parabens, and combinations thereof; the antioxidant has a weight percentage in the range of 0.005 to 1% with respect to the composition and the antioxidant is selected from the group consisting of butylated hydroxy toluene, tocopheryl acetate, vitamin E, and combinations thereof.
8. A cleansing composition as claimed in claim 1 comprising:
a) at least one alkyl polyglucoside having weight percentage in the range of 0.2 - 20% with respect to the composition;
b) at least one betaine compound having weight percentage in the range of 2 - 10% with respect to the composition;
c) at least one thickener having weight percentage in the range of 0.1 -5% with respect to the composition; and
d) at least one surfactant having weight percentage in the range of 0.1 -10% with respect to the composition,
wherein the at least one alkyl polyglucoside to the at least one betaine compound weight ratio is in the range of 1:0.5-1:2.5.
9. A process for the preparation of cleansing composition as claimed in claim 1,
comprising the steps of:
a) obtaining at least one alkyl polyglucoside;
b) obtaining at least one betaine compound;
c) obtaining at least one thickener;
d) obtaining at least one surfactant; and

e) contacting the at least one alkyl polyglucoside, at least one betaine compound, at least one thickener, and at least one surfactant to obtain the cleansing composition.
10. A process for the preparation of cleansing composition as claimed in any of the
claims 1-8, comprising the steps of:
(a) contacting at least one alkyl polyglucoside, at least one surfactant, optionally at least one chelating agent, and water to obtain a first mixture;
(b) contacting at least one betaine compound and the first mixture to obtain a second mixture; and
(c) contacting second mixture with at least one humectant, at least one salt, at least one emollient, optionally at least one preservative, optionally at least one antioxidant, and combinations thereof to obtain a cleansing composition.
11. The process as claimed in claim 10, wherein (i) contacting at least one alkyl
polyglucoside, at least one surfactant, optionally at least one chelating agent
and water to obtain a first mixture is carried out at a temperature in the range of
70-80 °C; (ii) contacting at least one betaine compound and the first mixture to
obtain a second mixture is carried out at a temperature in the range of 50-60
°C; (iii) contacting second mixture at least one humectant, at least one salt,
with optionally at least one emollient, optionally at least one preservative,
optionally at least one antioxidant, and combinations thereof is carried out at a
temperature in the range of 30-35 °C to obtain a cleansing composition.