Lactic acid is an alpha hydroxy acid (AHA).
Lactic acid is used to exfoliate the skin, lighten dark spots, and improve the look of fine lines and wrinkles.
Lactic acid is popular for two main reasons:
- It can create real change in the skin if used regularly.
- It's one of the more gentle hydroxy acids used in skin care.
When you use lactic acid regularly, it can also improve signs of aging.