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 for increasing hydration or elasticity of a dry skin comprising applying to the dry skin an effective amount of a cosmetic composition comprising: a functional thylakoids-containing photosynthetic cell extract (PCE), and a topically-acceptable carrier, wherein the PCE is present in an amount from about 0.01% to about 0.1% based upon the total weight of the composition, wherein the dry skin is free from disease.
2. The method of claim 1 , wherein the carrier is selected from the group consisting of fats, hydrophilic or lipophilic gelling agents, and fillers.
3. The method of claim 1 , wherein the extract is non-lyophilized and formulated in a liquid composition.
4. The method of claim 1 , wherein the extract is a lyophilized extract reconstituted in a solution compatible with topical administration.
5. The method of claim 2 , wherein the carrier is a fat selected from the group consisting of: emulsifiers and coemulsifiers.
6. The method of claim 2 , wherein the composition further comprises a preservative agent.
7. The method of claim 4 , wherein the lyophilized extract is reconstituted in water, physiological saline or propylene glycol.
8. The method of claim 4 , wherein the lyophilized extract is in a solid composition.
9. A method for increasing hydration or elasticity of a dry skin comprising applying to the dry skin an effective amount of a cosmetic composition consisting essentially of: a functional thylakoids-containing photosynthetic cell extract (PCE), and a topically-acceptable carrier, wherein the PCE is present in an amount from about 0.01% to about 0.1% based upon the total weight of the composition, wherein the dry skin is free of a condition.