Ask Dr. Schultz
What about Lactic Acid?
What about Lactic Acid? I heard it’s the best type of chemical peel for hyperpigmentation, also it’s said to be more gentle than other peels.
You are correct that Lactic acid is the most gentle AHA (alpha hydroxy acid) and is the first AHA used clinically for patients (1965) in a product called Lachydrin Lotion, that is still available and promoted to help dry skin in older patients.
Because of its very gentle strength, I find it not to be very effective by itself for hyperpigmentation but do use it combined with other exfoliants and bleaches.