This month’s survey of recent patent and research literature describes money-making ideas for personal care product development, including indirect antioxidants for skin protection, caper and prickly pear extracts to address skin conditions, granulated shampoo and a dual phase mouthwash, among others.
Skin and Skin Care
Polysiloxane emulsifiers: Clariant International Ltd. discloses cosmetic or pharmaceutical compositions, preferably emulsions, utilizing one or more modified polysiloxanes with at least one carbamate group as the emulsifiers.
Vernonia to improve skin: Bayer Consumer Care describes the use of Vernonia extract to improve skin. The described invention incorporates a Vernonia plant extract from Madagascar into cosmetics, pharmaceuticals and food supplements to improve the skin by strengthening the dermal-epidermal junction and/or activating fibroblast synthesis and extracellular matrix compounds.
Thus, dried leaves of Vernonia appendiculata were extracted using heptane and percolated with ethanol. The fats were then removed by liquid-liquid extraction, also using heptane. After concentration into the aqueous phase, glycerin was added to adjust the solution to 10% extract in a water-glycerin blend. The final product resulted in a liquid containing > 5% of chlorogenic and isochlorogenic acids. The end Vernonia extract obtained was formulated at 1% into an antiaging cream.
Topical, injectable hyaluronan and heparin: Innoderm has patented topical and injectable cosmetic or pharmaceutical compositions containing a combination of cross-linked or non-cross-linked hyaluronan and heparin and/or one or more heparinoid derivatives. These compositions were employed to prolong the lifespan of the hyaluronan present in the skin, which is either endogenous or exogenous, cross-linked or non-cross-linked, in order to improve its antiaging and moisturizing actions and to fill in wrinkles.
Antioxidant protection and phase 2 enzyme inducers: Western Holdings LLC discloses skin protectant compositions containing antioxidants and indirect antioxidants—i.e., phase 2 enzyme inducers—such as one to protect skin against the damage caused by UV radiation. Specifically disclosed is a broccoli extract in combination with a composition including Hibiscus flower extract, Ferula assa foetida root extract, pear fruit extract and green tea leaf extract, which exhibits a synergistic effect and protects against the adverse effects of UV radiation. The composition further includes vitamins C and E and is suggested for cosmetics, sunscreen products, moisturizers, toners and other skin care.