The Ordinary AHA 30% + BHA 2% Peeling Solution, Advanced Exfoliating Peel for Brighter Skin, 1 Fl Oz

AHA 30% + BHA 2% Peeling Solution exfoliates multiple layers of skin's surface for a brighter, more even appearance. With the help of alpha-hydroxy acids (AHA), beta-hydroxy acids (BHA), and a studied Tasmanian pepperberry derivative, a known anti-irritant, this at-home peel helps visibly even skin texture, exfoliate dead skin that can clog pores, and improve uneven skin tone. The formula is further supported with a crosspolymer form of hyaluronic acid pro-vitamin B5 and black carrot. 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 optimal balance between salt and acidity.