The Ordinary AHA 30% + BHA 2% Peeling Solution is a 10-minute exfoliating facial. With 30% Alpha Hydroxyl Acids (Glycolic/ Lactic/ Tartaric/ Citric), 2% Beta Hydroxyl Acid (Salicylic Acid), Hyaluronic Acid Crosspolymer, Vitamin B5, Black Carrot & Tasmanian Pepperberry. Alpha hydroxyl acids (AHA) exfoliate the skin's topmost surface for a brighter & more even appearance. Beta hydroxyl acids (BHA) also exfoliate the skin with an extended function to help clear pore congestion. This combined 32% AHA/BHA solution offers deeper exfoliation to help fight visible blemishes & for enhanced skin radiance. The formula also improves the appearance of skin texture & reduces the look of fine lines with continued use. This formula contains a studied Tasmanian Pepperberry derivative to help reduce irritation associated with acid use. This derivative is of plant origin & varies in colour seasonally & this colour variation may be apparent in the formula from time to time. This formula is further supported with a crosspolymer form of hyaluronic acid for comfort, Vitamin B5 to assist healing & black carrot as an antioxidant. This p H of this formula is Approx. 3.6. Glycolic Acid, the primary AHA used in the formula, has a p Ka of 3.6 & p Ka is the most important aspect to consider in formulating with acids. p Ka implies acid availability. When p Ka is close to p H, there is an ideal balance between salt & acidity, maximising effectiveness of the acid & reducing irritation. Higher p H numbers in such a case would increase salt which counter-intuitively would make the formula even more irritating than if the formula was more acidic. Alcohol-free, oil-free, silicone-free, nut-free, vegan, gluten-free, soy-free, cruelty-free.