BHA and Skincare
What is BHA?
BHA is short for Beta Hydroxy Acids. According to the US FDA, salicylic acid (or related substances, such as salicylate, sodium salicylate, and willow extract)* is often referred to as a BHA in the cosmetics industry, even though from a strict chemistry standpoint, it is not a BHA. Beta hydroxybutanoic acid, tropic acid, and trethocanic acid are also BHAs.
Why is BHA used in Skincare?
*The FDA suggests you give yourself extra protection from UV when using BHA products*