Hydroxyethylpiperazine Ethane Sulfonic Acid.

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

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

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

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

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