Research on the uses and efficacy of AHAs is extensive. However, out of all the AHAs available, glycolic and lactic acids are the most promising and well researched. These two AHAs are also less likely to cause irritation. Because of this, most over-the-counter (OTC) AHAs contain either glycolic or lactic acid.
AHAs are primarily used to exfoliate. They can also help:
- promote collagen and blood flow
- correct discoloration from scars and age spots
- improve appearance of surface lines and wrinkles
- prevent acne breakouts
- brighten your complexion
- increase product absorption