Dermatological Test (Patch Test) is a test that evaluates the skin irritation that may occur when the cosmetic product is applied to the skin and the compatibility of the product with the skin, and is performed on healthy volunteers under the supervision of a Dermatologist. This test is mandatory for you to use the expression "Dermatologically tested." in your marketing activity. Necessary medical measures are taken, and a panel is organized with appropriate volunteers (12 or 20) after the health data of all volunteers are reviewed by the Specialist Dermatologist, and the results are evaluated by the Dermatologist before the Dermatological test. Dermatological tests in our laboratory are carried out based on the guidelines of the Cosmetics Europe: Product Test Guidelines For The Assessment of Human Skin Compatibility and the Turkish Ministry of Health.