Home › Ingredients › Glycolic Acid
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.
10 graded products with an effective dose of Glycolic Acid
81/100 B Paula's Choice 25% AHA + 2% BHA Exfoliant Peel
81/100 B Tatcha Violet-C Brightening Serum 20% Vitamin C + 10% AHA
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 The Ordinary Glycolic Acid 7% Exfoliating Toner
57/100 D Paula's Choice 8% AHA Gel Exfoliant
57/100 D COSRX AHA 7 Whitehead Power Liquid
57/100 D The Ordinary Glycolic Acid 7% Toning Solution
57/100 D Paula's Choice Skin Perfecting 8% AHA Gel Exfoliant
57/100
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.
Get "Efficacy Grade of the Week"
We deconstruct one viral product a week — the active, the dose, the receipts. Free, and you can't pay us to inflate a grade.