Method of determining an individual's level of tolerance to application of a product to skin of the individual, and a kit for implementing such a method

摘要

A method of determining an individual's level of tolerance to application of a cosmetic product to skin of the individual may include: applying a substance onto a test zone of the skin, the substance containing at least one agent for stimulating the peripheral nervous system; exerting a mechanical action on the test zone of the skin to reduce a barrier function of the skin relative to the substance; and observing any reaction of the individual as a result of applying the substance. The substance may be the product itself and/or may be configured to produce a reaction representative of an undesirable reaction that might be observed after application of the product. The mechanical action may be exerted at least one of before, during and after application of the test substance.