Glycolic Acid
💚Good
Exfoliant
pH Adjuster
AHA
What it is
An alpha hydroxy acid (AHA) derived from sugar cane. It has the smallest molecular size of all AHAs, allowing it to penetrate effectively.
How it works
Glycolic acid works by dissolving the bonds that hold dead skin cells to the surface of the skin, promoting exfoliation and increasing cell turnover. At higher concentrations, it can penetrate deeper to stimulate collagen production in the dermis.
Pairs well with
Other AHAs, Hyaluronic Acid
Formulation notes
Effective concentration: 5% - 10% for home use.
pH range: Most effective at a pH between 3.0 and 4.0.
Stability: Stable.
Safety
Irritancy: Moderate to high, can cause stinging and redness.
Comedogenicity: 0
Warnings: Increases sun sensitivity; daily use of sunscreen is essential.
Ratings
Paula's Choice: Best
INCIdecoder: superstar