Collection: AHA, BHA & PHA Exfoliants

Smoother texture, clearer pores and a brighter glow start with the right acid. AHA, BHA and PHA are the chemical exfoliants at the heart of K-beauty. Instead of scrubbing, they gently dissolve dead surface skin so your complexion looks smoother, clearer and more radiant. This collection brings together Korean acid toners, serums, pads and peels so you can find the exfoliant that fits your skin.

Quick answer: which acid should you choose?

Choose AHA (like glycolic, lactic or mandelic acid) for smoothing rough texture, dullness and the look of dark spots. Choose BHA (salicylic acid) if you are oily or acne-prone, because it is oil-soluble and gets into pores to clear congestion and blackheads. Choose PHA (like gluconolactone) for the gentlest option if your skin is sensitive or new to exfoliating. Many Korean formulas combine two or three for balanced, everyday results.

AHA vs BHA vs PHA

AHA (alpha hydroxy acids) are water-soluble and work on the skin surface to smooth texture, soften the look of fine lines and fade dullness and dark spots. They suit normal, dry and sun-damaged skin best.

BHA (beta hydroxy acid, salicylic acid) is oil-soluble, so it penetrates into pores to clear excess oil, blackheads and congestion. It is the go-to for oily and acne-prone skin and for pore and texture concerns.

PHA (polyhydroxy acids) have larger molecules that work more gently on the surface, making them the mildest choice for sensitive skin or exfoliating beginners.

Want the full breakdown with a comparison table and routine tips? Read our guide: AHA vs BHA vs PHA: The Complete Korean Exfoliation Guide.

What acid exfoliants help with

Used consistently, chemical exfoliants can smooth rough or bumpy texture, refine the look of pores, clear blackheads and congestion, fade the look of dark spots, and boost radiance for a fresher, more even complexion. Explore related goals in brightening and even tone and glass skin and glow.

How to use exfoliating acids safely

Less is more with acids. Start 2 to 3 times a week in the evening and build up only as your skin adapts. Patch test first if your skin is reactive, avoid stacking acids with retinoids on the same night, and never over-exfoliate, since that damages your barrier. Most importantly, wear sunscreen every morning, because exfoliating acids make skin more sensitive to the sun. Pair your routine with daily Korean sunscreen to protect your progress.

Frequently asked questions

What is the difference between AHA, BHA and PHA?
AHA is water-soluble and smooths surface texture and tone; BHA is oil-soluble and clears inside pores, ideal for oily and acne-prone skin; PHA is the gentlest, best for sensitive skin or beginners.

Which acid is best for acne and blackheads?
BHA (salicylic acid), because it is oil-soluble and gets into pores to clear congestion, oil and blackheads.

How often should I exfoliate with acids?
Start 2 to 3 times a week in the evening and build up slowly. Over-exfoliating damages the skin barrier, so more is not better.

Do I need sunscreen when using exfoliating acids?
Yes. Acids increase sun sensitivity, so daily broad-spectrum sunscreen is essential to protect your skin and your results.