Gently and effectively exfoliation multiple layers of your skin, this The Ordinary AHA 30% + BHA 2% Peeling Solution harnesses the power of alpha-hydroxy acids (AHA), beta-hydroxy acids (BHA), and a studied Tasmanian pepperberry derivative to reveal a brighter, more balanced complexion. Evening skin texture, decongesting pores, and balancing skin prone to pigmentation, this at-home peel delivers transformative results, the hyaluronic acid, pro-vitamin B5, and black carrot enriched formula comforting, hydrating, and protecting your complexion. Note: This formula contains an extremely high concentration of free acids. We recommend use only if you are an experienced user of acid exfoliation and your skin is not sensitive. The pH of this formula is approximately 3.6. Glycolic Acid, the primary AHA used in the formula, has a pKa of 3.6 and pKa is the most important aspect to consider in formulating with acids. pKa implies acid availability. When pKa is close to pH, there is an ideal balance