Polyhydroxy Acid
ExfoliantHumectantAlso known as: PHA, Gluconolactone, Galactose
A class of gentle exfoliating acids with larger molecular size than AHAs. Provide exfoliation with added humectant and antioxidant benefits.
Routine placement
Treatment · PM
Time to results
2-4 weeks for smoother texture; 6-8 weeks for even tone
Gentle exfoliation, hydrating, antioxidant, strengthens barrier, suitable for all skin types including sensitive.
Apply daily in serum or toner form. Gentle enough for morning and evening use.
Clinical studies show comparable efficacy to AHAs for anti-aging with significantly less irritation. Suitable for post-procedure skin.
Cautions
Very well tolerated. Minimal irritation and photosensitivity compared to AHAs and BHAs.
What does Polyhydroxy Acid do for skin?
Polyhydroxy Acid is used in skincare primarily as a exfoliant ingredient. Its effects depend on concentration and formulation. Check the benefits section above for specific details.
Is Polyhydroxy Acid safe for sensitive skin?
Polyhydroxy Acid is generally well-tolerated, but sensitivity varies by individual. Start with a patch test if you have reactive skin, and introduce gradually into your routine.
Can I use Polyhydroxy Acid every day?
For most skin types, daily use is appropriate at standard concentrations. If you experience any irritation, reduce frequency to every other day.
Can I use Polyhydroxy Acid with retinol?
Use caution when combining exfoliating or active ingredients. Alternate days or use at different times of day to avoid over-irritation.
Does your skincare contain Polyhydroxy Acid?
Paste your product's ingredient list to check, or create your Skinularity ID for a full routine.
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