What it is
Mandelic acid is an alpha hydroxy acid (AHA) derived from bitter almonds. It’s a gentle chemical exfoliant known for its larger molecular size, which allows it to penetrate the skin more slowly and evenly than stronger AHAs like glycolic acid. This makes it suitable for sensitive, reactive, or acne-prone skin types.
How it works in skincare
Mandelic acid helps dissolve the bonds between dead skin cells, promoting smoother texture and a brighter complexion. It also regulates oil production and supports clearer pores, which can make it particularly effective for treating mild acne and congestion.
Beyond exfoliation, this acid has antibacterial and pigment-fading properties. It’s often used to help even out skin tone, fade post-acne marks, and reduce the appearance of hyperpigmentation without causing irritation. In professional treatments, mandelic acid is sometimes incorporated into chemical peels for a controlled, radiant resurfacing effect that refreshes dull or uneven skin.