While the CLINICAL PRO Retinaldehyde Treatment is designed for mid-to-late 20s and beyond, it can benefit teens with blemishes or uneven skin. However, it's important to introduce the product slowly (2-3x per week), monitor skin’s response and use sunscreen daily. Other effective options for teens include our 2% BHA Liquid Exfoliant, 10% Azelaic Acid Booster and our CLEAR line for acne.