Patent ID: 6500411
Filing Date: 2002-12-31
Classification: A61K,A61P,A61Q

Abstract:
A multifunctional additive composition for a cosmetic, a personal care, or a topical pharmaceutical formulation, comprising a particulate material, and a natural polymer other than carboxymethyl cellulose or xanthan gum, for addition to the formulation, said formulation including a hydrophilic liquid selected from the group consisting of water, a hydrophilic organic liquid, and mixtures thereof, said additive improving the efficacy of a sunscreen active material in said formulation, said sunscreen active capable of absorbing ultraviolet radiation in the UVA or UVB wavelength ranges, said additive performing at least one of the following functions when added to said cosmetic, personal care, or pharmaceutical formulation: (i) increasing the viscosity of a hydrophilic liquid selected from the group consisting of water, a hydrophilic organic liquid, and mixtures thereof; (ii) emulsifying and stabilizing oil droplets against creaming and coalescence in a hydrophilic liquid selected from the group consisting of water, a hydrophilic organic liquid, and mixtures thereof; and (iii) functioning as an antioxidant.