Question: why is aha good for skin?
Answer: AHAs may also help treat and prevent recurring acne. Acne pimples occur when your pores are clogged with a combination of dead skin cells, oil (sebum), and bacteria. Exfoliating with AHAs can help loosen and remove the clog. ... Skin cell turnover from exfoliating glycolic and lactic acids can even reduce acne scars.