Chemical exfoliation has been popular in the skincare world for a few years now. In basic terms, chemical exfoliants are acids that shed dead skin cells from the surface of your skin. While your skin already does this process on its own, chemical exfoliation speeds it up, especially when things like sun exposure and aging can slow it down.
There are many benefits to chemically exfoliating, but you have to determine which specific exfoliant is best for your skin type. Alpha-hydroxy acids (AHAs) are one of the most popular forms of acids — they tend to be gentle and are naturally occurring. Glycolic acid, a common version of AHA, helps to manage acne and improve skin texture. However, it's not always compatible with dark skin. Instead, opt for mandelic acid, an AHA which is non-irritating and doesn't run the risk of darkening discoloration like glycolic acid.
BHAs are stronger than AHAs and go deeper under the surface of the skin to exfoliate. Salicylic acid is the most commonly used form of BHA. Other BHAs include tropic acid, threthocanic acid, and beta hydroxybutanoic acid. BHAs are great for excessively oily and acne-prone skin. It works to clear out the pores, reducing their appearance while clearing up acne. BHAs can be quite strong, and like other acids, should be reserved for the evening.
