INCI: Gluconolactone
Polyhydroxy acid, a structural sibling of lactobionic acid. Used in very gentle acid formulations for sensitive skin and post-procedure recovery. A larger molecule than AHAs, it acts mostly at the surface without provoking stinging or redness. Moisturising effect from multiple hydroxyl groups.
Topical application
CWeak evidence. In vitro data, open-label studies, or expert consensus.
Clinical data on isolated galactonic acid are scarce. Most PHA research covers gluconolactone and lactobionic acid. Within multi-PHA serums it adds to the overall gentle exfoliation.
Irritation potential
LowAllergen risk
LowPregnancy
SafeSuitable for
Galactonic Acid is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
Galactonic Acid suits: normal, dry, combination, sensitive.
Polyhydroxy acid, a structural sibling of lactobionic acid.
The INCI name is Gluconolactone. It may also appear as: Galactonic Acid, Galactose, Bionic Acid.
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