Mandelic acid is a type of alpha hydroxy acid (AHA). There’s some research showing mandelic acid is an effective exfoliant, although it’s not as effective as glycolic acid due to its larger size (it’s twice as big as glycolic acid) and slower penetration into skin; however, these traits can also make mandelic acid more tolerable for those with sensitive skin
INCL Mandelic Acid
Personal care (creams, serums, peels).
Like other AHAs, mandelic acid is most effective in leave-on products that are within a 3-4 pH range.