Much like some of the other ‘acids’ on this list, lactic acid is a chemical exfoliant in the group known as alpha hydroxy acids or AHA’s, which works to slough off dead skin cells.
Benefits: This AHA refreshes the skin so it can appear more vibrant, as well as help to get rid of any acne or signs of aging. Something to always take note of when using ingredients like this is that AHA’s temporarily thin the skin, which means you’re more susceptible to UV damage, so always make sure to apply an ample amount of SPF when using these types of products.
Skin Types: Because lactic acid is also slightly moisturizing it's a more gentle acid than others. It shouldn’t be used everyday and can be used by all skin types after a patch test is conducted.