Dioic Acid: Naturally found in various animal fats and vegetable oils, dioic acid in skincare helps reduce excess sebum while diminishing P.acnes bacteria. This ingredient has also been shown to improve the appearance of uneven skin tone. SkinCeuticals only uses vegetable-derived dioic acid for skin in its formulations.

LHA: A derivative of salicylic acid, this lipohydroxy acid (LHA) helps promote cell turnover via targeted exfoliation. It has also been shown to decongest pores and refine the skin’s surface.

Salicylic Acid: Salicylic acid in skincare is a beneficial ingredient for those with oily or acne-prone skin, as well as other skin concerns. This beta hydroxy acid (BHA) helps exfoliate the skin and refine the appearance of pores while reducing the formation of acne when used at the proper concentration.

Glycolic Acid: Lauded as the gold standard in chemical exfoliation, glycolic acid is the smallest alpha hydroxy acid (AHA). This potent ingredient is recognized for its ability to provide an even exfoliation to the skin by helping promote cellular turnover to improve the look of fine lines, skin texture, tone, and radiance. Available in cleansers, serums, toners, or creams, SkinCeuticals glycolic acid in skincare provides an effective solution for various skin concerns including dullness, uneven texture and tone, imperfections, and/or signs of skin aging.