Use of a photosynthetic cell extract comprising functional thylakoids in cosmetic compositions
View Patent ↗The invention relates to cosmetic and topical compositions containing an effective amount of a photosynthetic cell extract comprising a functional thylakoid system. The cosmetic compositions have anti-wrinkle and anti-aging effects on a user's skin. In addition, the photosynthetic cell extract protects skin against ultraviolet A (UVA) and ultraviolet (UVB) damage.
1. A method to provide protection to skin against oxidative damage caused by ultra-violet (UV) radiation comprising applying to the skin an effective amount of a cosmetic composition comprising:
a functional thylakoids-containing photosynthetic cell extract (PCE), wherein the PCE is present in an amount from about 0.01% to about 0.1% based upon total weight of the composition:
an anti-UV effective amount of a sunscreen agent; and
an acceptable carrier.
2. The method of claim 1 , wherein the oxidative damage includes lipid peroxidation.
3. The method of claim 1 , wherein the oxidative damage includes erythrocyte haemolysis.
4. The method of claim 1 , wherein the oxidative damage includes DNA damage.
5. The method of claim 1 , wherein the composition is formulated for topical application.
6. The method of claim 1 , wherein the carrier of the composition is selected from the group consisting of fats, hydrophilic or lipophilic gelling agents and fillers.
7. The method of claim 1 , wherein the extract is non-lyophilized and formulated in a liquid composition.
8. The method of claim 1 , wherein the extract is a lyophilized extract reconstituted in a solution compatible with topical administration.
9. The method of claim 8 , wherein the lyophilized extract is in water, physiological saline or propylene glycol.
10. The method of claim 8 , wherein the lyophilized extract is in a solid composition.
11. The method of claim 1 , wherein the UV radiation is UVA radiation.
12. The method of claim 1 , wherein the UV radiation is UVB radiation.