glycolic acid
/ˈɡlaɪkəlɪk ˈæsɪd/ · gly·col·ic acid
noun
- A simple alpha‑hydroxy acid (AHA) with the formula C₂H₄O₃, used in chemical peels, cosmetics, and various industrial processes. The dermatologist recommended a glycolic acid peel to improve the patient’s uneven skin tone.
- The aqueous solution of this acid, employed as a descaling agent or in textile processing. Workers diluted glycolic acid before using it to remove mineral deposits from equipment.
Did you know? Glycolic acid is the smallest alpha‑hydroxy acid, allowing it to penetrate skin more deeply than larger AHAs, which is why it’s a staple in many anti‑aging skincare products.