Patent ID: 6036969
Filing Date: 2000-03-14
Classification: G01N

Abstract:
A process for cosmetically determining the tan of a self-tanning composition comprising the steps ofthinly rubbing a cosmetic self-tanning medium containing dihydroxyacetone on at least one test field that is on a substrate selected from the group consisting of paper, a film, and a plate made of a material selected from the group consisting of natural material and synthetic material; andvisually evaluating the resulting tan on the test field after 5 seconds to 5 minutes;whereby the test field has at least one substance selected from the group consisting of amino acids Gly, Ala, Val, Leu, Ile, Ser, Thr, Cys, Met, Asn, Lys, Asp, Gln, Glu, Phe, Tyr, Trp, His, Pro and the purines adenine, guanine, xanthine and hypoxanthine and mixtures of individual compounds of these chemicals.