Transparent cosmetic and personal care compositions

Abstract

A transparent cosmetic or personal care composition comprising: a) a polymeric thickener, b) a protein, c) an active material, which is selected from disaccharides, lactones, inorganic salts, diacids and mixtures thereof, d) a solubilizer, e) a pH adjuster, f) a dye g) water wherein the solubilizer comprises a mixture of at least two components, said mixture comprising at least one high HLB component having an HLB value of from 10 to 20 and at least one low HLB component having an HLB value of from 1 to less than 10, and wherein the dye comprises violet, blue, red or mixtures thereof.

Claims

1. A transparent cosmetic or personal care composition comprising: a) a polymeric thickener comprising a copolymer of vinyl methyl ether and maleic anhydride, b) a protein, c) an active material, which is selected from disaccharides, lactones, inorganic salts, diacids and mixtures thereof, d) a solubiliser, e) a pH adjuster, f) a dye g) water, and h) fragrance the composition being a leave-on hair treatment composition in the form of a gel, wherein the solubiliser comprises a mixture of at least two components, said mixture comprising at least one high HLB component having an HLB value of from 10 to 20 and at least one low HLB component having an HLB value of from 1 to less than 10, the mixture comprising Coceth-7, PPG-1 PEG-9 Lauryl Glycol Ether and PEG-40 Hydrogenated Castor Oil, and wherein the dye comprises violet, blue, red or mixtures thereof, and wherein the composition has a pH in the range of from 2 to 4.5.

2. A transparent composition as claimed in claim 1, wherein the copolymer of vinyl methyl ether and maleic anhydride is polyvinylmethylether/maleicanhydride decadiene crosspolymer.

3. A transparent composition as claimed in claim 1, wherein the protein is selected from hydrolysed keratin, hydrolysed wheat protein, hydrolysed roe, caviar, hydrolysed elastin, hydrolysed collagen and mixtures thereof.

4. A transparent composition as claimed in claim 1, wherein the disaccharide is trehalose.

5. A transparent composition as claimed in claim 1, wherein the lactone is gluconolactone.

6. A transparent composition as claimed in claim 1, wherein the inorganic salt is sodium sulphate.

7. A transparent composition as claimed in claim 1 which comprises an additional ingredient selected from an oil, a preservative, a humectants and mixtures thereof.

8. A method of treating hair, comprising applying to the hair a transparent composition as defined by claim 1.

Description

EXAMPLES

(1) The invention will now be illustrated by the following non-limiting examples. In the examples and throughout this specification, all percentages are by weight based on total composition unless indicated otherwise.

Example 1: Composition T1, in Accordance with the Invention, and Comparative Composition TA

(2) Compositions T1 and TA were manufactured using the following method: The polymeric thickener was added to water and mixed until fully dispersed. The hydrolysed proteins, trehalose, sodium sulphate, adipic acid, gluconolactone and other water soluble materials were then added to the mixture. In a separate vessel, the fragrance and other oil soluble materials were blended with the solubiliser. This mixture was then added to the main batch and mixed until a transparent solution was obtained. In a side vessel, the dye component(s) were added to water and mixed until fully dissolved. The resulting dye mixture was added to the main vessel and fully mixed. Finally, the pH was adjusted with sodium hydroxide to between 3 and 4.5.

(3) The compositions are shown in Table 1.

(4) TABLE-US-00001 TABLE 1 Compositions of T1 and TA (wt %) Composition T1 (in Comparative accordance with the composition Ingredient invention) (wt %) TA (wt %) Hydrolysed elastin.sup.1 0.1 0.1 Hydrolysed keratin.sup.2 0.4 0.4 Sodium hydroxide (50%) 0.4 0.4 Glycerine.sup.3 3.0 3.0 Perfume 0.25 0.25 Eumulgin HPS emulsifier.sup.2 1.5 Trehalose 0.23 0.23 Sodium sulphate 0.1 0.1 D-Gluconolactone 0.01 0.01 Adipic acid 0.01 0.01 PVM/MA decadiene crosspolymer.sup.4 0.7 0.7 Red33 (dye) 0.08 Blue (dye) 0.07 Deionised water To 100 To 100 .sup.1Ex Lonza .sup.2Ex BASF .sup.3Pricerine 9091, available from Croda .sup.4Stabileze QM, ex Ashland Inc

Example 2: Colour Stability of Compositions T1 and TA

(5) Compositions T1 and TA were stored at a range of temperatures (5 C., 25 C., 37 C. and 45 C.) for a period of 4 weeks. During this time it was noticed that T1 remained clear and free of yellow discoloration when compared to TA which became increasingly turbid and yellowed over time.