COSMETIC COMPOSITIONS EXHIBITING CHARACTERISTIC FIRST DERIVATIVE SPECTRAL CURVES AND ASSOCIATED METHODS

摘要

Cosmetic compositions and cosmetic compositions that have been adapted fordelivery to provide applied cosmetic compositions that have aspectrophotometric curve, wherein a first derivative of the spectrophotometriccurve comprises: a) a maximum peak in the region of from about 430 nm to about520 nm occurs at a wavelength not greater than about 480 nm; b) a maximum peakin the region of from about 420 nm to about 650 nm occurs at a wavelength offrom about 570 nm to about 630 nm; and c) a minimum valley in the region offrom about 520 nm to about 580 nm has a D%R/D of less than or equal to about0.03, wherein R is reflectance and is wavelength, and wherein the cosmeticcomposition comprises a mixture of at least two colorants, wherein a firstderivative of a spectrophotometric curve of each of the individual colorantsdoes not exhibit (a), (b) and (c). Methods for providing such compositionscomprise adding colorants to a cosmetic composition to provide the compositionwith a spectrophotometric curve as described.