Glycolic Acid

An alpha hydroxy acid from sugarcane, water-soluble and small in molecular size, with pH-dependent activity. It's used in leave-on or rinse-off exfoliants to loosen surface buildup, refine texture, and support a more even-looking tone.
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Ingredient Snapshot

Overview
A sugarcane-derived acid that exfoliates for smoother, brighter skin.
Category
Exfoliating, Brightening, Tone/Texture, Acne, Anti-aging
Type
Exfoliant

Ingredient Ratings

Overall Rating

Good

Comedogenic Risk

None

Skin Benefits

Promotes a smoother, brighter-looking complexion and softens the look of fine lines and rough patches. Helps unclog surface debris so pores appear more refined.

Uses In Skincare & Cosmetics

Frequently found in toners, serums, and at-home peels for nighttime resurfacing. Also used in exfoliating cleansers and body lotions for rough areas like elbows or KP-prone skin.

Comedogenic Rating

This ingredient is not typically evaluated for comedogenicity, and no standardized rating is available.

Safety

May cause tingling, redness, or dryness, especially at higher strengths or low pH. It can increase photosensitivity; use with daily sunscreen and consider nighttime application. Patch test and reduce frequency if irritation occurs.

Is Glycolic Acid a Good Ingredient?

It's Good because it's a well-studied AHA that genuinely smooths texture and brightens when used at effective, low-pH levels. Its small molecular size, though, increases sting potential and sun reactivity compared with some other acids, which is the tradeoff that keeps it from Great.