Glycolic Acid (AHA)

Glycolic acid toners, serums and peels that exfoliate for smoother, brighter skin. Helps with texture, dullness and fine lines.

Glycolic acid (AHA) for smoother, brighter skin

Glycolic acid is the best-known alpha hydroxy acid (AHA). Derived originally from sugar cane, it has the smallest molecule of all AHAs, which allows it to work efficiently on the skin's surface. It loosens the bonds between dead skin cells so they shed more easily, revealing smoother, more radiant skin underneath. It is one of the most effective ingredients for dullness, rough texture and uneven tone.

What glycolic acid can do

• Smooths rough texture and refines the look of pores.
• Boosts radiance for a fresher, brighter complexion.
• Helps fade the look of dark spots and uneven tone over time.
• Helps other skincare absorb more evenly.

How to use glycolic acid safely

1. Start with a low-concentration toner or serum two or three evenings a week.
2. Apply to clean, dry skin and follow with a hydrating moisturiser.
3. Avoid using it on the same night as retinol or other strong exfoliants at first.
4. Wear broad-spectrum sunscreen every morning, as AHAs increase sun sensitivity.

A mild tingle is normal, but persistent stinging, redness or peeling means you should use it less often. Higher-strength peels are best left to professionals.

Who should use it?

Glycolic acid suits normal, oily, combination and sun-damaged skin. If your skin is very sensitive, lactic acid or mandelic acid may be gentler AHA alternatives.

Brands in this collection

Discover glycolic acid skincare from Alpha-H, Dermalogica, Caudalie, Biovene, Lierac, Bruno Vassari, Ducray, Collistar, Nudestix and L'Oreal Paris.

Frequently asked questions

What is the difference between AHA and BHA?

AHAs such as glycolic acid are water-soluble and work on the surface for radiance and texture. BHAs such as salicylic acid are oil-soluble and work inside pores, which makes them better for blemishes.

Can I use glycolic acid every day?

Some gentle daily toners are designed for it, but most people get the best balance with a few times a week.

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