Ingredient

Potassium Hydroxide

Korean label: 포타슘하이드록사이드

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A gentler AHA exfoliant that also hydrates; good for first-time acid users.

A humectant and gentle exfoliant in one; a dermatology staple for rough, very dry skin.

Pure vitamin C; an antioxidant that brightens and supports collagen.

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The strongest common AHA exfoliant; smooths texture and fades dark spots.

Calms redness and fades post-acne marks; one of the few actives considered pregnancy-friendly.