Compositions and methods for stabilization of retinoids
The present invention relates to a composition and method for stabilisation of compounds including retinoids using the synergistic effects of beta-carotene and sodium polyaspartate.
1. A cosmetic composition comprising:
retinaldehyde; beta-carotene; and
sodium polyaspartate.
2. The cosmetic composition according to claim 1 , wherein the beta-carotene is synthetic beta-carotene, isolated beta-carotene, or a plant extract containing beta-carotene.
3. The cosmetic composition according to claim 2 , wherein the ratio of synthetic beta carotene or isolated beta carotene to sodium polyaspartate is 1:0.1 to 1:10.
4. The cosmetic composition according to claim 2 , wherein the plant extract is from carrot.
5. The cosmetic composition according to claim 4 , wherein the carrot extract is at least one of carrot root extract and carrot seed oil extract.
6. The cosmetic composition according to claim 5 , wherein the ratio of carrot extract to sodium polyaspartate is 100:1 to 10:1.
7. The cosmetic composition according to claim 6 , wherein the ratio of carrot extract to sodium polyaspartate is 40:1 to 15:1.
8. The cosmetic composition according to claim 1 , wherein the concentration of retinaldehyde is up to 0.1% weight, wherein the weight percentage is based on total composition weight.
9. The cosmetic composition according to claim 1 , wherein the retinaldehyde is cyclodextrin encapsulated.
10. A stabilising composition comprising:
beta-carotene;
sodium polyaspartate; and
retinaldehyde, wherein the beta-carotene and sodium polyaspartate stabilise the retinaldehyde.
11. The stabilising composition according to claim 10 , wherein the beta-carotene is synthetic beta-carotene, isolated beta-carotene, or a plant extract containing beta-carotene.
12. A method of stabilising retinaldehyde, the method comprising:
providing a composition comprising beta-carotene, sodium polyaspartate, and retinaldehyde.
13. The method according to claim 12 , wherein the beta-carotene is synthetic beta-carotene, isolated beta-carotene, or a plant extract containing beta-carotene.
14. The method according to claim 13 , wherein the ratio of synthetic beta carotene or isolated beta carotene to sodium polyaspartate is 1:0.1 to 1:10.
15. The method according to claim 13 , wherein the plant extract is from carrot.
16. The method according to claim 15 , wherein the carrot extract at least one of carrot root extract and carrot seed oil extract.
17. The method according to claim 16 , wherein the ratio of carrot extract to sodium polyaspartate is 100:1 to 10:1.
18. The method according to claim 16 , wherein the ratio of carrot extract to sodium polyaspartate is 40:1 to 15:1.
19. The method according to claim 12 , wherein the concentration of retinaldehyde is up to 0.1% weight, wherein the weight percentage is based on total composition weight.