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Glycolic Acid: does it work, and at what %?
Glycolic Acid is one of the actives we grade on evidence, not marketing. The benefit is real — but only when the dose clears the threshold the research supports. Here's the number, and the products that actually hit it.
The verdict: 5–10% glycolic acid exfoliates and improves tone and texture with regular use.
How we grade Glycolic Acid
We check the disclosed concentration against the effective threshold from peer-reviewed dermatology literature and regulatory monographs, then weigh the formulation and any product-specific study. The grade is computed from the open rubric — re-run it on any ingredient list and you get the same letter. Also labeled as AHA, Alpha Hydroxy Acid.
The supply of Glycolic Acid we can actually verify
16 products in our index contain Glycolic Acid. 10 disclose a concentration we can confirm reaches an effective dose — that's 63%. The rest list it without a number, so its effect can't be verified at any price.
The best Glycolic Acid treatments, ranked by dose
7 treatments disclose an effective dose of Glycolic Acid, ranked by efficacy grade.
81/100 B Paula's Choice 25% AHA + 2% BHA Exfoliant Peel
81/100 B Drunk Elephant T.L.C. Framboos Glycolic Night Serum
75/100 C L'Oréal Paris Revitalift Derm Intensives 10% Pure Glycolic Acid Serum
63/100 D Paula's Choice 8% AHA Gel Exfoliant
57/100 D COSRX AHA 7 Whitehead Power Liquid
57/100 D Paula's Choice Skin Perfecting 8% AHA Gel Exfoliant
57/100
The best Glycolic Acid toners, ranked by dose
2 toners disclose an effective dose of Glycolic Acid, ranked by efficacy grade.
The best Glycolic Acid serums, ranked by dose
1 serums disclose an effective dose of Glycolic Acid, ranked by efficacy grade.
6 more products contain Glycolic Acid without disclosing the dose
These list Glycolic Acid on the label but publish no concentration. We withhold a grade rather than guess — why.
Common questions
What concentration of Glycolic Acid is effective?
On Visage Theory's rubric, Glycolic Acid reaches an effective dose at 5% and a strong, research-backed dose at 10%. Below that, the labeled benefit is unlikely no matter how good the marketing is.
Is more Glycolic Acid always better?
Not necessarily — past the effective range you mostly add irritation risk, not benefit. What matters is clearing the threshold in a stable formula, which is exactly what our grade checks.
How do I know a product actually contains an effective dose of Glycolic Acid?
Most brands list the active but hide the concentration. When the dose isn't disclosed we can't confirm efficacy, so we withhold a grade rather than guess. Products that disclose an effective dose are graded and listed below.
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