Mandelic is an alpha hydroxy acid (AHA). Although originally derived from amygdalin, an extract from almonds, most mandelicacid today is synthetically produced. Because of its larger molecular structure with respect to to other AHAs like glycolic acid, mandelic acid is known to have slower penetration into the skin, which in part moderates its irritation potential to the skin. By implication, the speed of action from a mandelicacid application may be slower or more gradual than some other AHA acids, and its use may be more appropriate for sensitive skin applications.
Mandelicacid has been found useful to improve various skin conditions including UV-driven lentigenes, darkening of skin seen with melasma, inflammatory acne, wrinkles, and fine lines.
