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1. WO2021062208 - BIPHASE CHEMICAL PEEL

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[ EN ]

What I claim:

1. A biphasic skin peel composition, comprising: at least one of each of alpha and beta hydroxy acids, and non-water-miscible oil present from at least 20% by weight based on the total weight of the composition, wherein the alpha and beta hydroxy acids, water and alcohol are present in a water phase, and the non-water-miscible oil is present in an oily phase, and wherein the water and oily phases are present in equal amounts (about 1:1).

2. The biphasic skin peel composition according to claim 1, further comprising phenylethyl resorcinol.

3. The biphasic skin peel composition according to claim 2, wherein the alpha hydroxy acid comprises one or a combination of lactic acid and glycolic acid, the beta hydroxy acid comprises salicylic acid, and the non-water-miscible oil is selected from the group consisting of isopropyl myristate, isononyl isononanoate, dicaprylyl carbonate, mineral oil, C13-15 aikane/hemisquaiane, squalane, dimethicone, C17-18 branched alkanes, and combinations thereof.

4. The biphasic skin peel composition according to claim 1, wherein the composition is surfactant free.

5. A biphasic skin peel composition, comprising:

a. at least alpha hydroxy acid;

b. at least beta hydroxy acid; and

c. at least one non-water-miscible oil present from at least about 20% by weight based on the total weight of the composition.

6. The biphasic skin peel composition according to claim 5, wherein the alpha hydroxy acid is selected from the group consisting of lactic acid, glycolic acid, tartaric acid, mandelic acid, citric acid, ester derivatives thereof and combinations thereof.

7. The biphasic skin peel composition according to claim 5, wherein the composition comprises from about 4% to about 15%, by weight, of alpha hydroxy acid.

8. The biphasic skin peel composition according to claim 5, wherein the composition comprises about 10.0%, by weight, of alpha hydroxy acid.

9. The biphasic skin peel composition according to claim 5, wherein the alpha hydroxy acid is one or a combination of lactic acid and glycolic acid.

10. The biphasic skin peel composition according to claim 5, wherein the composition comprises from about 0.2% to about 2.0%, by weight, of salicylic acid.

11. The biphasic skin peel composition according to claim 5, wherein the composition comprises about 0.45%, by weight, of salicylic acid.

12. The biphasic skin peel composition according to claim 5, wherein the non-water-miscible oil is selected from the group consisting of isopropyl myristate, isononyl isononanoate, dicaprylyi carbonate, mineral oil, C13-15 alkane/hemisqualane, squalane, dimethicone, C17-18 branched alkanes, and combinations thereof.

13. The biphasic skin peel composition according to claim 5, wherein the composition further comprises from about 0.2% to about 0.8%, by weight, of phenylethyl resorcinol.

14. The biphasic skin peel composition according to claim 5, wherein the composition further comprises from about 5% to about 20%, by weight, of alcohol.

15. The biphasic skin peel composition according to claim 5, wherein the at least one non-water-miscible oil is present an oily phase, the oil present in an amount from at least about 20% and up to about 60%, and wherein water and each of the at least one at least alpha hydroxy acid and beta hydroxy acid is present in a water phase, wherein the water phase is present in an amount from about 40% to about 80%, all percentages by weight, based on the total weight of the composition.

16. The biphasic skin peel composition according to claim 5, further comprising one or more additives selected from citric acid, sodium chloride; chelating agents; antimicrobial agents; neutralizing/pH-adjusting agents; vitamins; fragrances; pearlescent agents; odor absorbers; coloring materials; essential oils; fruit extracts; and combinations thereof.

17. A biphasic skin peel composition, comprising:

a. at least alpha hydroxy acid present from about 8% to about 12%, by weight, based on the total weight of the composition;

b. at least beta hydroxy acid present from about 0.35% to about 0.75%, by weight, based on the total weight of the composition;

c. at least one non-water-miscible oil present from at least about 20% by weight based on the total weight of the composition;

d. phenylethyl resorcinol present from about 0.7% to about 0.8%, %, by weight, based on the total weight of the composition

wherein the at least one non-water-miscible oil is present an oily phase, and wherein water and each of the at least one alpha hydroxy acid and beta hydroxy acid is present in a water phase, wherein the water phase is present in an amount from about 40% to about 80%, all percentages by weight, based on the total weight of the composition.

18. The biphasic skin peel composition according to claim 17, wherein:

a. the at least one alpha hydroxy acid comprises one or a combination of lactic acid and glycolic acid;

b. the at least one beta hydroxy acid comprises salicylic acid;

c. the at least one non-water-miscible oil is selected from the group consisting of isopropyl myristate, isononyl isononanoate, dicaprylyl carbonate, mineral oil, CIS- 15 alkane/hemisqualane, squalane, dimethicone, C17-18 branched alkanes, and combinations thereof.

19. The biphasic skin peel composition according to claim 18, wherein the composition is surfactant free.

20. The biphasic skin peel composition according to claim 19, wherein the composition is characterized as leave-on, being light-weight, with a pleasing feel upon application, with little to no skin irritation and discomfort.