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. It is important to note that with applying the 20% TCA peel, it is highly recommended to first begin building up the skin's tolerance by using the TCA 10% Peel first with good result. The TCA 20% Peel is 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 breakouts, expression lines, wrinkles, discoloration, stretch marks and tone concerns. This is a highly effective acid that addresses most aging and environmental skin issues. FOR BEST RESULTS:We recommend adding on the Basic Peel Essentials Kit for the application of this chemical peel. Before Your PeelFor best results, prep the skin for a week prior to peel application with a daily exfoliator. We strongly recommend conducting a patch test 3 days before applying a peel to ensure no negative or unusual reactions occur. After Your PeelGenerously apply Daily Collagen Complex or Hyaluronic Serum as needed for relief from tight, dry skin. Use a minimum of broad spectrum SPF 30 every day to protect healing skin. If you will be in the sun during the day, reapply SPF every 2-3 hours. DOWNTIME: Moderate - Varies accordingly to individual skin traits. Minimal peeling and flaking is to be expected with a 7 to 10 day recuperation period.