AHA vs BHA vs PHA: Which Exfoliating Acid Is Right for You?
Quick comparison
| Acid | Best for | Examples |
|---|---|---|
| AHA | Tone, texture, glow (dry/normal) | Glycolic, lactic, mandelic |
| BHA | Pores, blackheads, oily skin | Salicylic acid |
| PHA | Sensitive skin, gentle exfoliation | Gluconolactone, lactobionic |
How to use them
Start once or twice a week at night, build up slowly, and always wear SPF the next day. For congestion and pores, choose BHA; for dullness and texture, choose AHA; for reactive, sensitive skin, choose a gentle PHA or mandelic acid.
Don't over-do it
Over-exfoliating damages the barrier — if skin stings, flakes or reddens, cut back and focus on ceramides and hydration. Browse all exfoliators & acids.
Frequently asked questions
Can I use AHA and BHA together?
Some products combine them, but if you're new to acids, start with one. Layering multiple strong acids can irritate the skin.
How often should I use exfoliating acids?
Begin 1–2 times a week and increase gradually as tolerated. Daily use suits only well-formulated, gentle, low-strength products.
Do I need SPF when using acids?
Absolutely — acids increase sun sensitivity, so daily broad-spectrum SPF is essential to protect your skin and your results.
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Exfoliators & Acids · Pore Care · Soothing & Redness Relief · Acne & Blemish · Sunscreen & SPF
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