PHA (Polyhydroxy Acids) (Gluconolactone, Lactobionic Acid) is primarily used for gentle exfoliation, antioxidant, hydration, barrier-friendly. The mechanism: Larger molecule than AHAs — slower penetration; also humectant and chelating properties.
The scientific name is Gluconolactone, Lactobionic Acid. Larger molecule than AHAs — slower penetration; also humectant and chelating properties. This mechanism is consistent across properly formulated products, which means the real variable is concentration and delivery system.
Typical working concentration is 3–10%. Best suited to all, especially sensitive/rosacea skin. Primary applications: gentle exfoliation, antioxidant, hydration, barrier-friendly.
Works well with: Ceramides, hyaluronic acid, niacinamide.
Next generation of AHAs; minimal photosensitisation; suitable for rosacea.