WHAT IT IS:Trichloroacetic Acid, also known as TCA, is an effective chemical agent used to exfoliate and renew skin. TCA can be used to exclusively peel isolated areas of the skin, but it is important to note that with applying any peel, it is important to first begin building up the skin's tolerance by using a daily exfoliator for about a week prior to peel application. Higher strengths of TCA peels ( 20% and 30%) are not recommended for darker skin tones due to increased risk of post-inflammatory hyperpigmentation. WHAT IT IS FORMULATED TO DO:TCA is a deeper penetrating peel than AHA or BHA peels as it exfoliates the skin more rapidly upon initial contact. TCA peels are recommended for a range of skin conditions from acne, fine lines and wrinkles, hyperpigmentation, stretch marks and skin tone concerns. FOR BEST RESULTS:We recommend adding on the Basic Peel Essentials Kit for application of this chemical peel. Before Your PeelWe strongly recommend conducting a patch test 3 days before applying a peel to ensure no negative or unusual reactions occur. DOWNTIME: Mild/Moderate - Varies accordingly to individual skin traits. Minimal peeling and flaking is to be expected with a 7 to 10 day recuperation period.