Process for measuring cosmetic tanning and test kit therefor
AssigneeCoty B. V.
InventorsKarin Golz-Berner, Leonhard Zastrow
Life of this patent
Estimating the term…
Abstract
There are a process for evaluating beforehand a self-tanning composition in reference to different skin types, and a test kit to implement the process. A cosmetic self-tanning medium containing dihydroxyacetone is thinly rubbed on at least one test field, and the resulting tan on the test field is visually evaluated after 5 seconds to 5 minutes. The test field has at least one substance selected from the group 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.
Claims16
A process for cosmetically determining the tan of a self-tanning composition comprising the steps of
- thinly 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;
- and
- visually 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.
A cosmetic test kit for a self-tanning medium based on dihydroxyacetone comprising
- a substrate material 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;
- a field marked on the substrate material to which a substance is applied that is selected from the group of amino acids consisting of 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;
- and
- the self-tanning medium containing dihydroxyacetone or a precursor of dihydroxyacetone which reacts to form a tan.
Dependencies are inferred from the claim text.