NATURAL TONE COLOURED COSMETIC COMPOSITIONS AND METHODS FOR PROVIDING SUCH COMPOSITIONS

Cosmetic compositions and cosmetic compositions that have been adapted for delivery to provide applied cosmetic compositions that have a spectrophotometric curve, wherein a first derivative of the spectrophotometric curve comprises: a) a maximum peak in the region of from about 430 nm to about 520 n...

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Bibliographische Detailangaben
1. Verfasser: KALLA, KAREN, K
Format: Patent
Sprache:eng ; spa
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Zusammenfassung:Cosmetic compositions and cosmetic compositions that have been adapted for delivery to provide applied cosmetic compositions that have a spectrophotometric curve, wherein a first derivative of the spectrophotometric curve comprises: a) a maximum peak in the region of from about 430 nm to about 520 nm occurs at a wavelength not greater than about 480 nm; b) a maximum peak in the region of from about 420 nm to about 650 nm occurs at a wavelength of from about 570 nm to about 630 nm; and c) a minimum valley in the region of from about 520 nm to about 580 nm has a D%R/D? of less than or equal to about 0.03, wherein R is reflectance and ? is wavelength, and wherein the cosmetic composition comprises a mixture of at least two colorants, wherein a first derivative of a spectrophotometric curve of each of the individual colorants does not exhibit (a), (b) and (c). Methods for providing such compositions comprise adding colorants to a cosmetic composition to provide the composition with a spectrophotometric curve as described. Se presentan composiciones cosmeticas y composiciones cosmeticas que se han adaptado para aplicarse y obtener composiciones cosmeticas aplicadas que tengan una curva espectrofotometrica, en donde una primera derivada de la curva espectrofotometrica comprende: a) un pico maximo en la region de 430 nm a 520 nm aproximadamente, que se presenta a una longitud de onda no mayor a 480 nm aproximadamente; b) un pico maximo en la region de 420 nm a 650 nm aproximadamente, que se presenta a una longitud de onda aproximada de 570 nm a 630 nm; y c) un valle minimo en la region de 520 nm a 580 nm aproximadamente, con un ?%R/?? menor o igual a 0.03 aproximadamente, en donde R es la reflectancia y ? es la longitud de onda, y en donde la composicion cosmetica contiene una mezcla de al menos dos colorantes, en donde una primera derivada de la curva espectrofotometrica de cada uno de los colorantes individuales no presenta (a), (b) ni (c). Metodos para obtener estas composiciones, que consisten en adicionar colorantes a una composicion cosmetica y debido a ello obtener la composicion con una curva espectrofotometrica tal como ya se describio.