Exfoliation is the fastest way to smooth, glowing skin — but the wrong acid can leave you red and stripped. Korean skincare is famous for gentle exfoliation, and the key is knowing the difference between PHA, AHA, and BHA. Here's the simple guide.
AHA vs BHA vs PHA: The Quick Version
- AHA (e.g., glycolic, lactic acid): Water-loving. Works on the skin's surface to smooth rough texture and dullness. Best for normal-to-dry skin.
- BHA (salicylic acid): Oil-loving. Goes into the pore to clear sebum and blackheads. Best for oily, congested skin.
- PHA (e.g., gluconolactone): The gentlest of the three. Larger molecules exfoliate slowly on the surface, so it's ideal for sensitive skin and exfoliation beginners.
The Gentle Korean Exfoliation Routine
Start with PHA. If your skin is sensitive or new to acids, begin with the belif Problem Solution Vegan PHA Clearing Toner. PHA gently lifts dead skin and unclogs pores without the sting AHAs and BHAs can cause.
Rehydrate immediately. Exfoliation can leave skin thirsty, so follow with a deeply hydrating toner like the Isntree Hyaluronic Acid Toner to replenish moisture and keep the barrier happy.
Soothe and protect. Finish with a calming layer such as the SKIN1004 Madagascar Centella Ampoule to reduce any post-exfoliation redness and lock in the results.
Exfoliation FAQ
How often should I exfoliate?
Start with 1–2 times per week and build up slowly. Over-exfoliating damages the barrier and causes more irritation, not less.
Can I use exfoliants with retinol?
Use them on alternate nights to avoid irritation, and always wear sunscreen the next morning.