Method of in vitro evaluation of the retention and/or the transfer properties of cosmetics

摘要

The present invention relates to a method of in vitro evaluation of the transfer of a cosmetic comprising: raising a first medium to a predetermined temperature; depositing a film of the cosmetic on a first face of the first medium; allowing the film to dry during a predetermined duration; measuring the color of a second medium and the color of a total transfer reference; forming a first imprint of the film of cosmetic on the second medium by pressing the first face of the first medium in static manner against the second medium with predetermined pressure; measuring the color of the first imprint; and evaluating the transfer of the cosmetic from the colors as measured in this way.