Glycolic Acid

Also known as: AHA, Alpha Hydroxy Acid, Sugar cane acid

Low ConcernAHAEWG: 4-6

The most potent AHA exfoliant — it dissolves dead skin bonds to reveal brighter, smoother skin.

How it works

Glycolic acid has the smallest molecular weight of all AHAs, allowing the deepest penetration into the epidermis. It works by breaking the ionic bonds between corneocytes, releasing dead skin cell buildup. It also stimulates collagen production in the dermis and has been shown to reduce signs of sun damage and fine lines with regular use.

Concentration note

OTC: 5–10% effective. Professional peels: up to 70%. Always use SPF when using AHAs.

Best for

Dull skinUneven textureHyperpigmentationAnti-ageingNormal-oily skin

Avoid if

Sensitive skinRosaceaSunburned skinFirst-time AHA users (start with lactic)

Commonly found in

Chemical exfoliantsPeelsAnti-ageing serumsToners

✅ Pairs well with

Hyaluronic Acid Ceramide NP Niacinamide

⚠️ Avoid combining with

Retinol L-Ascorbic Acid Salicylic Acid

Safety & restrictions

Increases photosensitivity — daily SPF is mandatory. Can cause irritation, peeling, and redness especially at high concentrations. Not for active eczema or broken skin.

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For informational purposes only. Not medical advice. Consult a dermatologist for personalised guidance.