Why do some glycolic acid products feel gentler?

Neutralising glycolic acid lowers its free-acid content, which is the exfoliating fraction.

Evidence

Source:: Green BA et al. Clin Dermatol. 2009;27(5):495-501
Applies to:: Formulations containing glycolic acid
What this does not establish:: How a given product performs on your skin. Finished-product pH and concentration are rarely published, so this describes the chemistry, not a measurement of any specific product.
Last reviewed:: 2026-09-26

In practice

This formula pairs glycolic acid with a neutralising base. Raising pH lowers the proportion of free acid, which is the fraction that does the exfoliating. That is a deliberate trade-off toward tolerability: the same labelled percentage will be milder than an unneutralised formula at a lower pH.

Dermasift analyses skincare formulations against published cosmetic science. This is information, not medical advice — for a diagnosed skin condition, speak to a dermatologist.

Check this against a product’s ingredient list

Why do some glycolic acid products feel gentler?

Neutralising glycolic acid lowers its free-acid content, which is the exfoliating fraction.

Evidence

Source:: Green BA et al. Clin Dermatol. 2009;27(5):495-501
Applies to:: Formulations containing glycolic acid
What this does not establish:: How a given product performs on your skin. Finished-product pH and concentration are rarely published, so this describes the chemistry, not a measurement of any specific product.
Last reviewed:: 2026-09-26

In practice

Dermasift analyses skincare formulations against published cosmetic science. This is information, not medical advice — for a diagnosed skin condition, speak to a dermatologist.

Check this against a product’s ingredient list