In Use Safety Test

This is a clinical test performed to assess the safety of cosmetic products post usage on the skin or target area of application. This test is conducted by dermatologists who evaluate the clinical and functional signs of skin safety before and after product application.

The test typically lasts for 3-28 days, during which time the product is applied to the skin and evaluated for any adverse reactions, such as redness, itching, or irritation.

This test is crucial for cosmetic companies to ensure that their products are safe and suitable for use on human skin.