In Thailand, the cosmetics are classified as specially controlled cosmetics, controlled cosmetics and general cosmetics. Specially controlled cosmetics are the products containing ingredients that may cause a seriously harmful effect to human health if the used concentrations exceed the maximum allowable levels and the products are used carelessly or inappropriately other than indicated. Controlled cosmetics are the products containing ingredients that may cause harmful effects if the used concentrations exceed the maximum allowable levels. General cosmetics are the products which do not fall under specially controlled or controlled cosmetics.
The cosmetic control in Thailand has been implemented by the Cosmetic Act B.E. 2558 (2015). The cosmetic regulation consists of various activities in two major areas: pre-marketing and post-marketing activities. According to the Cosmetic Act of B.E. 2558(2015), the focus of regulation has been recently shifted from pre-marketing activities to post-marketing activities. This effort originated on the notion that the utilization of technical requirements and the practice of good manufacturing guidelines can ensure the quality of cosmetic products manufactured.