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Glycolic Acid

What Glycolic Acid is & what it does

The smallest alpha-hydroxy acid, which penetrates well to loosen dead surface cells, smoothing texture and brightening dull, uneven skin. It is effective but can be irritating and increases sun sensitivity.

What does Glycolic Acid do in skincare?

Glycolic Acid is the smallest of the alpha hydroxy acids and is widely used as an exfoliating agent. It works at the skin's surface to help loosen and shed dead surface cells, which can leave skin feeling smoother. Its small molecular size is a frequently noted characteristic of this acid.

Is Glycolic Acid safe in skincare?

Glycolic Acid is a well-studied alpha hydroxy acid that is commonly used in cosmetics within established concentration and pH guidelines. Because it is an exfoliant, it can increase skin sensitivity, and using sunscreen during the day is generally advised. Following product directions and patch testing are sensible steps, especially for sensitive skin.

Is Glycolic Acid natural or synthetic?

Glycolic Acid occurs naturally in some sources such as sugarcane, but the glycolic acid used in cosmetics is most often produced synthetically for consistency and purity. The molecule itself is identical regardless of how it is made. Brands do not always state the source on the label.

Sunscreens with Glycolic Acid

We rate 38 sunscreens that contain it, showing the top 10 by overall score:

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