Sustainable cold-dispersible pearlescent concentrate

Abstract

Sustainable, free-flowing, cold-dispersible pearlescent concentrates are made without using any controversial or known toxic substance is disclosed herein. The pearlizing concentrates of the instant invention are free of alkyl sulphates/alkyl ether sulphates, alkanol amides, alkylamidopropyl betaines, and esters of ethylene glycol. The pearly concentrates of the present invention employ ‘super-mild’ surfactants to disperse vegetable plant derived 1,3-proane diol stearates. Also, these concentrates are preserved without any controversial antimicrobials such as parabens, isothiazolinones and formaldehyde releasers.

Claims

1. A free flowing cold-dispersible, aqueous pearlizing concentrate comprising; a) 10 to 20% by weight of a mixture of an O-acyl isethionate (Formula III) and an N-acyl amino acid surfactant (Formula IV); ##STR00009## wherein R.sub.4 is selected from the group consisting of C.sub.7 to C.sub.21 saturated or unsaturated alkyl groups, R.sub.5 is H or methyl and M is a cation selected from Na.sup.+, K.sup.+, and NH.sub.4.sup.+; b) 15 to 30% by weight of pearlizing wax selected from 1,3 propane diol esters of fatty acids (Formula V); ##STR00010## wherein R.sub.6 is selected from the group consisting of C.sub.13 to C.sub.21 saturated or unsaturated alkyl groups, and R.sub.7 is H or R.sub.6CO; c) 2 to 6% by weight of N-acyl glycine (Formula VI); ##STR00011## wherein R.sub.8 is selected from the group consisting of C.sub.7 to C.sub.21 saturated or unsaturated alkyl groups; and d) 0.8 to 1.2% by weight of a preservative system consisting of phenoxy ethanol, capryloyl glycine and undecylenoyl glycine.

2. The pearlescent aqueous concentrate according to claim 1, comprising a mixture of said O-acyl isethionate and said N-acyl amino acid surfactant, wherein the weight ratio of said O-acyl isethionate and said N-acyl amino acid surfactant is from 2.0:0.5 to 0.5:2.0.

3. The free flowing, aqueous, cold-dispersible pearlizing aqueous concentrate according to claim 1 which comprises; a) a mixture of sodium N-cocoyl glycinate and sodium cocoyl isethionate in the weight ratio of 2:1 in an amount of 10% w/w; b) 1,3-propane diol distearate in an amount of 20% w/w; c) cocoyl glycine in an amount of 5% w/w; and d) said preservative blend system consisting of phenoxy ethanol, capryloyl glycine, undecylenoyl glycine in the weight ratio of 8:1:1 in an amount of 1.2% w/w.

4. A Process for preparing a free flowing, aqueous, cold-dispersible pearlizing concentrate comprising: (i) Emulsifying a wax of Formula V by intimately mixing said wax of Formula V with ‘super mild’ a mixture of an O-acyl isethionate of Formula III and an N-acyl amino acid surfactant of Formula IV; and b) a non-ionic surfactant of Formula VI, in water at 75 to 80° C. to produce an emulsified mass; ##STR00012## (ii) Cooling the emulsified mass to 45° C. over 2 to 4 hours under gentle agitation; (iii) Adding a preservative system consisting of phenoxy ethanol, capryloyl glycine, and undecylenoyl glycine to the cooled mass to produce a concentrate; (iv) Holding the concentrate prepared in step (iii) at 45° C.-50° C. for 12-24 hours; and (v) Cooling the concentrate to room temperature.

5. The process of claim 4, further comprising adjusting the pH of the concentrate to between 6.0 and 7.0 using citric acid.

6. The aqueous pearlescent concentrate according to claim 1, wherein the aqueous concentrate has a solids content of at least 35% by weight.

7. The aqueous pearlescent concentrate according to claim 1, wherein the aqueous concentrate has a viscosity of between 3,000 and 20,000 cps.

8. The aqueous pearlescent concentrate according to claim 1, wherein the aqueous concentrate has a D.sub.50 particle size of 5-15 μm.

9. A personal care composition comprising about 2 to 10% by weight of an aqueous concentrate according to claim 1.

Description

DETAILED DESCRIPTION OF INVENTION

(1) The present invention relates to a cold-dispersible pearlescent concentrate that is composed of safe, mild, non-toxic and eco-friendly ingredients. The pearlescent compositions of the patent application are based on established ‘super-mild’ and completely biodegradable surfactants system, the combination of O-acyl isethionates (Formula III) and N-acyl amino acid surfactants (Formula IV), eco-friendly pearly wax made from vegetable oil derived fatty acids and corn derived 1,3-propane diol, and non-toxic, non-controversial preservatives.

(2) In the first aspect, the present invention is directed to aqueous, cold-dispersible pearlescent concentrates, which comprises; 1) Combination of ‘super-mild’ surfactants; 2) Esters of 1,3-propane diol as pearl wax; 3) N-acyl glycines; and 4) Preservative system comprising phenoxy ethanol, capryloyl glycine and undecylenoyl glycine.

(3) The present invention discloses free flowing, aqueous, cold-dispersible pearlizing concentrates that are made by avoiding all controversial ingredients such as harsh surfactants, carcinogenic alkanol amides, non-ecofriendly pearly waxes, amidobeatines and antimicrobials.

(4) The aqueous pearlescent concentrates of the present invention comprise of

(5) a) 10 to 20% by weight of mild surfactants selected from O-acyl isethionates (Formula III) and N-acyl amino acid surfactants (Formula IV);

(6) ##STR00006##
wherein, R.sub.4 is selected from C.sub.7 to C.sub.21 saturated or unsaturated alkyl group, R.sub.5 is H or methyl and M is a cation selected from Na.sup.+, K.sup.+, NH.sub.4.sup.+;

(7) b) 15 to 30% by weight of pearlizing wax selected from 1,3 propane diol esters of fatty acids (Formula V);

(8) ##STR00007##
wherein, R.sub.6 is selected from C.sub.13 to C.sub.21 saturated or unsaturated alkyl group, R.sub.7 is H or R.sub.6CO;

(9) c) 2 to 6% by weight of N-acyl glycine (Formula VI)

(10) ##STR00008##
wherein, R.sub.8 is selected from C.sub.7 to C.sub.21 saturated or unsaturated alkyl group; and

(11) d) 0.8 to 1.2% by weight of preservative system consisting of phenoxy ethanol, capryloyl glycine and undecylenoyl glycine.

(12) In another aspect, the present invention is directed to personal care compositions containing the cold-dispersible pearlizer concentrate of the present invention. Accordingly, the invention provides personal care compositions comprising about 2 to 10% by weight of aqueous, cold-dispersible, cold processable pearlescent concentrates of the instant invention.

(13) In the present invention, the aqueous, cold-pearlizing concentrate is prepared by emulsifying the pearlizing wax by a combination of mild surfactants that have been established as ‘super-mild’ surfactants. The cold-dispersible pearlescent concentrates of the present invention are made by dispersing pearly wax, stearates of 1,3-propane diol (Formula V) using 10 to 20% by weight of mild surfactants selected from O-acyl isethionates (Formula III) and N-acyl amino acid surfactants (Formula IV, R.sub.4=C.sub.7 to C.sub.21, R.sub.5=H, methyl, M is a cation selected from NH.sub.4.sup.+, Na.sup.+ or K.sup.+).

(14) In a preferred embodiment, the ratio of O-acyl isethionates and N-acyl amino acid surfactants is from 2.0:0.5 to 0.5:2.0.

(15) O-Acyl isethionates (Formula III) can be selected from sodium cocoyl isethionate or sodium lauroyl isethionate. Commercially, the isethionates are available in solid form (powder, needles or granules) with a minimum 80% anionic active matter. N-acyl amino acid surfactants (Formula IV) can be selected from sodium lauroyl glycinate, sodium cocoyl glycinate, sodium lauroyl sarcosinate or sodium cocoyl sarcosinate, which are available as aqueous solutions or in powder form. The preferred blends of ‘super-mild’ surfactants are O-acyl isethionates and N-acyl glycinates and the most preferred combination of super-mild surfactants is sodium N-cocoyl glycinate and sodium O-cocoyl isethionate in the ratio of 2:1. The blend of O-acyl isethionates and N-acyl glycinates used in the present invention are prepared by the process reported in Indian Patent Application number 1669/MUM/2013/by Koshti et al.

(16) The pearlizing wax of this patent application is selected from mono or di ester of 1,3-propane diol and fatty acids (Formula V). The alkyl chain can be selected from C.sub.12 to C.sub.22 for either mono or disters of propane diol. The preferred pearly wax of the instant invention is diester of fatty acids and most preferred wax is 1,3-proane diol distearate (CAS No 75537-28-9). The fatty acids needed for preparing the esters are derived from vegetable oils like coconut oil or palm kernel oil. The vegetable oils with higher degree of unsaturation can be hydrogenated so that unsaturated alkyl chains of oleic, linoleic and linolenic or erucic acids can be converted to the corresponding saturated analogs of stearic acid or behenic acid. The stearic acid that is used for the preparation of distearates of 1,3-propane diol is procured from commercially available grades that are mixtures of stearic and palmitic acid, with stearic content being 40 to 80%. Pure palmitic or stearic acid can also be used to make the pearly waxes. 1,3-Propane diol is made by fermentation of corn syrup. 1,3-Propane diol made from renewable vegetable source is commercially available under the trade name of Zemea® propane diol (CAS 504-63-2) offered by DuPont-Tate & Lyle. This diol, a personal care ingredient, is completely non-toxic and is used as humectants. Thus, the diesters of 1,3-propane diol, the pearly waxes of the present invention are completely biodegradable and their degradation products, namely, fatty acids and propane diol, are completely eco-friendly unlike ethylene glycol of glycol stearates.

(17) The non-ionic surfactant, employed in the pearlescent concentrates of the present invention is N-acyl glycine (Formula VI). This surfactant in its acid form is made by acidifying the aqueous solutions of commercially available sodium N-acyl glycinates and phase separating the N-acyl glycine (the acid form, forms upper layer) from the aqueous acidic layer. The N-acyl glycines can be further washed with water in hot condition to remove the mineral acidity. Depending upon the length of the alkyl chain on nitrogen, N-acyl glycine can be a liquid or a solid. In the examples of the instant invention, N-cocoyl glycine with alkyl chain distribution of C.sub.8 to C.sub.16 was predominantly used. It is the same alkyl chain distribution of sodium cocoyl glycinate (CAS No. 90387-74-9). N-acyl sarcosines made in similar way can also be used in place of N-acyl glycine (U.S. Pat. No. 2,729,657).

(18) In a preferred embodiment, 2-6% N-acyl glycine is used, preferably 4-6%.

(19) The cocoyl cut alkyl chain distribution for N-cocoyl glycinate and N-cocoyl glycine is given in TABLE II

(20) TABLE-US-00002 TABLE II Carbon chain distribution of Cocoyl group Carbon chain Range C.sub.8  4-12% C.sub.10  4-14% C.sub.12 59-65% C.sub.14 14-24% C.sub.16 1-8% C.sub.18 0.5 to 12%

(21) It is obvious to those with ordinary skilled in the art that alkyl group R.sub.8 is selected from one alkyl chain or mixture of alkyl chains and can be selected from carbon atoms ranging from C.sub.8 to C.sub.20.

(22) The pearlescent concentrates of the present application are preserved by a three component blend which is a mixture of three components, namely, phenoxy ethanol (CAS No 122-9-6, EC No: 204-589-7), capryloyl glycine (CAS No14246-53-8) and undecylenoyl glycine (CAS No 54301-26-7, EINECS No 427-430-5) in the ratio of 8:1:1 by weight.

(23) Capryloyl glycine, also known as N-octanoyl glycine, is a well-known skin purifier/protector. Commercially, it is available as Lipacide C8G from SEPPIC, France. It is active against most of the natural resident micro-flora that reside on human skin and is used in anti-acne, antiperspirant and deodorant preparations.

(24) Undecylenoyl glycine is reported to possess anti-acne and anti-dandruff activity (EP 0983055131). It is commercially available as Lipacide UG and is used as dermopurifier.

(25) 2-Phenoxy ethanol occurs in nature (Chinese Green Tea) and has been consumed by human race for centuries. It is a gentle antimicrobial and is preferred in preserving vaccines that contain very labile proteins. 2-Phenoxy ethanol is active against Gram negative bacteria (Cosmetic and Drug Preservation, Principles and Practice, Vol I, Ed Jon Kabara, Marcel Dekker).

(26) The preservative blend comprising 2-phenoxy ethanol, N-octanoyl glycine and N-undecylenoyl glycine in the ratio of 8:1:1 has been used at 1.2% level in Examples 1, 2 & 3 and 1% in shampoo, body wash and face-wash formulations of Examples 4, 5 and 6.

(27) These preserved pearlescent concentrates from Examples 1, 2 and 3 have been challenge-tested using microorganisms with initial levels of inoculation of 10.sup.8 to 10.sup.10 cfu/ml as per CTFA guideline (Evaluation of preservatives to protect cosmetics' by D. Orth in Cosmetics and Toiletries, March 91).

(28) As per CTFA guideline, on completing 28 days period of incubation, the concentrated blends of Example 1, 2 and 3 passed the challenge test. The test organisms that have been used in challenge test are Pseudomonas aeruginosa, Staphylococcus aureus, Escherichia coli, Candida albicans and Aspergillus niger. Thus, the preservative combination used in pearlescent concentrates of the present invention are made up of very ‘safe and non-toxic’ personal care ingredients and are free from parabens, formaldehyde donors, phenolic compounds, halogenated molecules and quaternary ammonium molecules.

(29) In another embodiment, the invention provides a process for manufacture of cold-dispersible pearlescent concentrate which comprises; 1) Emulsifying pearly wax using combination of mild surfactants in a specified ratio that are established as ‘super-mild’ surfactants and a non-ionic surfactant in water at 75 to 80° C.; 2) Cooling the emulsified mass gradually to 45° C. over 2 to 4 hours under gentle agitation with the addition of antimicrobial preservatives and maintaining the whole mass at the same temperature for 12 to 24 hours followed by cooling to room temperature and 3) Adjusting the pH to 6.5 to 7.5 (if necessary) with citric acid followed by adjusting the desired solids content of the pearly concentrate. (Example 1, 2 and 3).

(30) The pearly wax of used in the instant invention is a stearate ester of 1,3-propane diol and the non-ionic surfactant is N-acyl glycine.

(31) The viscosity of the pearlescent blends thus obtained ranges between 3,000 to 20,000 cps and the solids content is kept minimum 35% by weight. The particle size distribution is between 5 to 15 □m (D.sub.50) when measured using Malvern particle size analyzer (Mastersizer 2000E).

(32) The pearlescent concentrate thus prepared can be stored at a temperature of from about 20° C. to about 40° C. for six months without any significant change in physical properties.

(33) The aqueous, cold-dispersible pearlescent concentrates of the present invention can be specifically formulated into a wide variety of personal care and home care products. These products can be formulated by one skilled in the art utilizing conventional methods of preparation. The pearlizing concentrate of the instant invention imparts a high luster, nacreous look to body-wash, face-wash and shampoo (Example 4, 5 and 6). Generally, the personal or home care products can be made by merely mixing the personal or home care products together with the concentrate at room temperature.

Advantages of the Invention

(34) 1) The pearlescent concentrates of the instant invention are based on established ‘super-mild’ surfactants combination of O-acyl isethionates, N-acyl amino acid surfactants, particularly, glycinates (K. P. Ananthapadmanabhan et al., Journal of Clinical Aesthetic Dermatology 23-30, 6(6)).

(35) 2) These compositions are free from fatty alcohol ether sulphates (SLES) and hence mild on skin; avoids damage to hair cuticle and also devoid of cancer causing 1,4-dioxane.

(36) 3) The cold-dispersible pearlescent concentrates of the present invention use stearate esters of 1,3-propane diol. 1,3-Propane diol, unlike ethylene glycol (MEG is derived from petrochemical and is eco-toxic, proven teratogen in animals and possible teratogen for human. The impurity, DEG that can be present in MEG is highly poisonous) is derived from corn syrup by fermentation technology. Thus, 1,3-propane diol derived from renewable source is non-toxic substance and is used as humectant by cosmetic formulators.

(37) 4) The cold-dispersible pearlescent concentrates of the present invention do not use any controversial ingredient like alkanol amides, ethylene glycol based esters and alkyl amido propyl betaines.

(38) 5) The cold-dispersible pearlescent concentrates of the present invention avoids usage of controversial, estrogeinic, carcinogenic, incompatible antimicrobials e.g. parabens or formaldehyde releasers, phenolic, halogenated and quaternary ammonium type of molecules.

(39) 6) The pearlescent concentrates of the instant invention are preserved with a blend of phenoxy ethanol, capryloyl glycine and undecylenoyl glycine; all are established, commercially available and approved personal care ingredients.

(40) 7) The ingredients of the pearlescent concentrates of the instant invention make the final compositions, cold-processable, mild on skin, completely safe (toxicologically), and finally eco-friendly compared to what is available in market currently. This makes the compositions of the patent application completely sustainable from every aspect.

EXAMPLES

(41) The present invention is now described by way of working non limiting illustrative examples. The detail of the invention provided in the following examples is given by the way of illustration only and should not be construed to limit the scope of the present invention.

(42) Fatty acid, stearic acid was sourced from Palm Oleo SDN BHD, Malaysia. Biobased Zemea propane diol was sourced from DuPont Tate & Lyle Bio-Products, Loudon, USA. Preservative blend was available with Galaxy Surfactants Ltd, Navi Mumbai, India, under the trade name of Galguard NK4 which is a combination of 2-phenoxy ethanol, capryloyl glycine and undecylenoyl glycine in the ratio of 8:1:1 by weight.

Preparation of 1,3-propane diol distearate

(43) The pearly wax 1,3-propane diol distearate was prepared by reacting two gmol of stearic acid and one gmol of 1,3-propane diol under the catalytic influence of sulphonic acid catalyst (0.02 mole %) at 130-140° C. The water of esterification was removed continuously with a steady purging of nitrogen throughout the progress of reaction. The reaction was monitored on the basis of acid value of the reaction mass and was continued till the acid value of <10 was attained. The product was obtained as white flakes, with saponification value of 195 and melting point of 52-57° C.

Preparation of cocoyl glycine

(44) Cocoyl glycine was prepared from sodium cocoyl glycinate sourced from Galaxy Surfactants Ltd, Navi Mumbai. It is available with a trade name of Galsoft SCG. The 30% aqueous solution of sodium cocoyl glycinate is acidified with 10% sulphuric acid. After attaining the pH of 1.0, the separated solid, cocoyl glycine was filtered and washed with cold water to get rid of the acidity of mineral acid. It was dried and then used for creating the cold pearlescent concentrates (Examples 1, 2 and 3) of the present invention.

Example 1

Preparation of Cold-Dispersible Pearlizing Blend Using ‘Super-Mild’ Surfactants in 2:1 Ratio:Sodium Cocoyl Glycinate:Sodium Cocoyl Isethionate 2:1 and 1,3-Propane Diol Distearate

(45) TABLE-US-00003 Ingredients Qty (g) Sodium cocoyl glycinate (30% aq. solution) 352 Sodium cocoyl isethionate (85% active) 56 Cocoyl glycine 60 1,3-Propane diol distearate 200 Water 315 Citric acid pH adjustment (6-7) Preservative:Galgurad NK 4 12 (2-phenoxy ethanol, capryloyl glycine and undecylenoyl glycine in the ratio of (8:1:1) Weight of total batch 1000

(46) To a stirred solution of sodium cocoyl glycinate (352 g of 30% aqueous solution, 24% active with 5% sodium chloride) and sodium cocoyl isethionate (56 g, 85% active) in water (237 mL), was added cocoyl glycine (60 g) and the resulting mixture was heated to 80° C. for 15 minutes. To this mixture at 80° C., 1, 3-propane diol distearate (200 g) was added and stirred for additional 30 minutes. The resultant emulsion was then slowly cooled to 45° C. over two hours with gentle stirring. To this dispersion, water (78 mL) was added and mass was cooled to room temperature under gentle stirring over a period of two hours. pH was adjusted to 6 to 7 using citric acid. It was preserved with a 1.2% blend comprising 2-phenoxy ethanol, capryloyl glycine and undecylenoyl glycine in the ratio of (8:1:1)

(47) Analysis: Solids content: 42.7% Viscosity at 25° C. Brookfield LV 4, rpm 12: 13000 cps pH (10% dispersion): 6.4 Sodium chloride content: 2%

Example 2

Preparation of Pearlizing Blend Using ‘Super-Mild’ Surfactants in 2:1 Ratio: Sodium Cocoyl Sarcosinate:Sodium Cocoyl Isethionate: 2:1 and 1,3-Propane Diol Distearate

(48) TABLE-US-00004 Ingredients Qty (g) Sodium cocoyl sarcosinate (30% aq. Solution, 352 24% active) Sodium cocoyl isethionate 85% 56 Cocoyl glycine 60 1,3-Propane diol distearate 200 Water 315 Citric acid pH adjustment (6-7) Preservative:Galgurad NK 4 12 (2-phenoxy ethanol, capryloyl glycine and undecylenoyl glycine in the ratio of (8:1:1) Weight of total batch 1000

(49) To a stirred solution of sodium cocoyl sarcosinate (352 g of 30% aqueous solution, 24% active with 5% sodium chloride) and sodium cocoyl isethionate (56 g, 85% active) in water (237 mL), was added cocoyl glycine (60 g) and the resulting mixture was heated to 80° C. for 15 minutes. To this mixture at 80° C., 1,3-propane diol distearate (200 g) was added and stirred for additional 30 minutes. The resultant emulsion was then slowly cooled to 45° C. over two hours with gentle stirring. To this dispersion, water (78 mL) was added and mass was cooled to room temperature under gentle stirring over a period of two hours. pH was adjusted to 6 to 7 using citric acid. It was preserved with a 1.2% blend comprising 2-phenoxy ethanol, capryloyl glycine and undecylenoyl glycine in the ratio of (8:1:1)

(50) Analysis: Solids content: 42.7% Viscosity at 25° C. Brookfield LV 4, rpm 12: 10000 cps pH (10% dispersion): 6.4 Sodium chloride content: 2%

Example 3

Preparation of Cold-Dispersible Pearlizing Blend Using ‘Super-Mild’ Surfactants in 1:1 Ratio: Sodium Cocoyl Glycinate:Sodium Cocoyl Isethionate 1:1 and 1,3-Propanediol Distearate

(51) TABLE-US-00005 Ingredients Qty (g) Sodium cocoyl glycinate (30% aq. Solution) 262 Sodium cocoyl isethionate (85% active) 74 Cocoyl glycine 30 1,3-Propane diol distearate 200 Water 422 Citric acid pH adjustment (6-7) Preservative:Galguard NK 4 12 (2-phenoxy ethanol, capryloyl glycine and undecylenoyl glycine in the ratio of (8:1:1) Weight of total batch 1000

(52) To a stirred solution of sodium cocoyl glycinate (262 g of 30% aqueous solution, 24% active with 5% sodium chloride) and sodium cocoyl isethionate (74 g, 85% active) in water (264 mL), was added cocoyl glycine (30 g) and the resulting mixture was heated to 80° C. for 15 minutes. To this mixture at 80° C., 1,3-propane diol distearate (200 g) was added and stirred for additional 30 minutes. The resultant emulsion was then slowly cooled to 45° C. over two hours with gentle stirring. To this dispersion, water (158 mL) was added and mass was cooled to room temperature under gentle stirring over a period of two hours. pH was adjusted to 6 to 7 using citric acid. It was preserved with a 1.2% blend comprising 2-phenoxy ethanol, capryloyl glycine and undecylenoyl glycine in the ratio of (8:1:1).

(53) Analysis: Solids content: 38.3% Viscosity at 25° C. Brookfield LV 4, rpm 12: 5000 cps pH (10% dispersion): 6.9 Sodium chloride content: 1.5%

Example 4

‘Sulfate Free’ Shampoo

(54) TABLE-US-00006 Ingredients % (w/w) Phase A Deionized water To make 100.0 Polyquaternium 10 0.2 PEG-120 Methyl Glucose Trioleate (&) Propanediol 4 (Glucamate VLT) Phase B Sodium lauroyl glycinate (24%) 28 Sodium cocoyl taurate (40%) 22 Cocoamidopropyl betaine (29%) 5 Phase C Amodimethicone 2 Polyquaternium 7 2 Pearlescent concentrate of Example 1 5 EDTA Na.sub.2 salt 0.1 Phenoxy ethanol, capryloyl glycine, 1 and undecylenoyl glycine (8:1:1)

(55) Polyquaternium 10 and Glucamate VLT are dispersed in water separately to obtain phase A. Added phase B to phase A and mixed the mass until homogeneous. Added phase C and stirred until uniform mass is obtained. The pH of the final formulation was adjusted to 5.8-6.0 with 50% citric acid solution in water. The mass was blended with fragrance and color.

Example 5

‘Sulfate-Free’ Body Wash

(56) TABLE-US-00007 Ingredients % (w/w) Phase A Deionized water To make 100.0 Acrylate copolymer (Aqua SF-1) 3 Phase B Sodium cocoyl glycinate (30%) 10 Alkyl polyglucoside (C8/C10) 10 Sodium cocoyl taurate (40%) 15 Cocamidopropyl betaine (29%) 5 Phase C Dimethicone 2 Polyquaternium-7 2 Hydrolyzed wheat protein 1 Pearlescent concentrate of Example 1 4 EDTA disodium salt 0.1 Phenoxy ethanol, capryloyl glycine, 1 and undecylenoyl glycine (8:1:1)

(57) Acrylate copolymer (Aqua SF 1) was dispersed in water to obtain phase A. The phase A was added to Phase B and mixed the mass until homogeneous. Finally phase C was added and stirred until uniform. The pH of the final formulation was adjusted with 50% citric acid aqueous solution. Finally the mass was blended with fragrance and color.

Example 6

Mild Face Wash

(58) TABLE-US-00008 Ingredients % (w/w) Phase A Deionized water To make 100.0 Hydroxy ethyl cellulose  1.00 Phase B Disodium laureth sulfosuccinate 15.00 Cocamidopropyl betaine 15.00 Sodium lauroyl sarcosinate 10.00 PEG-7 glyceryl cocoate glycerin 2% Glycerin  5.00 Phase C Hydrolyzed barley protein 01.00 Pearlescent concentrate of Example 1 05.00 EDTA disodium salt 00.10 Phenoxy ethanol, capryloyl glycine, 01.00 and undecylenoyl glycine (8:1:1)

(59) Hydroxyethyl cellulose was dispersed in water to obtain Phase A. Added phase B & C to phase A, stirred until uniform mass obtained. The pH of the final formulation was adjusted with 50% citric acid to 5.8-5.9 and blended with fragrance and color.