AHA vs BHA vs PHA
Hi, this is Picky Recorder. Chemical exfoliants changed my skin—but only after I understood the difference between AHA, BHA, and PHA. Today’s guide breaks down these three exfoliating acids so you can choose the safest one for your skin.

AHA (Alpha Hydroxy Acids)
Water-soluble exfoliants that work on the skin’s surface.
Best For:
- Dry skin
- Dullness
- Texture improvement
Popular AHAs:
- Glycolic acid
- Lactic acid
AHA smooths flaky skin and boosts glow.
2. BHA (Beta Hydroxy Acids)
Oil-soluble exfoliant that penetrates pores.
Best For:
- Oily skin
- Blackheads
- Clogged pores
Popular BHA:
- Salicylic acid
BHA dissolves sebum and helps prevent breakouts.
3. PHA (Polyhydroxy Acids)
Gentle alternative to AHA.
Best For:
- Sensitive skin
- Mild exfoliation
- Hydration + smoothing
PHAs exfoliate while strengthening the barrier.
Conclusion
- AHA: surface smoothing
- BHA: pore-cleaning
- PHA: gentle exfoliation
Choose depending on skin type and tolerance.
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