FORECASTING OF TREATED SKIN COLORS

摘要

A method of selecting a substance for use in a cosmetic skin treatment comprises, measuring a reflectance spectrum of the skin to which said treatment is to be applied, said reflectance spectrum defining an original skin tone; modifying the measured reflectance spectrum in accordance with the absorbance spectrum of a substance proposed for said cosmetic skin treatment to provide a modified skin reflectance spectrum defining a modified skin tone; and matching such that if said modified skin tone appears to match said original skin tone then indicating said proposed substance in said cosmetic skin treatment, and otherwise repeating said modifying with a new proposed substance until a match is found.