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US 11,906,507 B2Granted
Methods for testing skin samples
AssigneeThe Procter & Gamble Company
InventorsKarl Shiqing Wei, Feng Yue, Hechuan Yu
Life of this patent
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Abstract
A method of taking a skin sample can include placing an adhesive onto a portion of skin and lifting the adhesive from the skin. A skin sample may then be tested while still on the adhesive, for example, by inoculating the sample with a bacterium, fungus, virus, or a combination.
Claims17
A method for evaluating a skin product, comprising the following steps in order:
- (a) preparing a target area on a healthy human subject by washing the target area with a skin cleanser and rinsing the target area one or more times per day for at least one day;
- (b) applying a skin product to the target area;
- optionally, rinsing the skin product from the target area;
- (c) obtaining a sample of skin cells from the target area, wherein the skin cells are obtained with the application and removal of an adhesive;
- (d) applying a bacterial load, fungal load, viral load, or combination thereof, to the sample on the adhesive;
- (e) measuring a bacterial level, fungal level, viral level, or a combination thereof, of the sample;
- and
- (f) evaluating the performance of the skin product.
5 more elements
Dependencies are inferred from the claim text.