Propanediol
Plant-derived humectant from corn. Works as a humectant and penetration booster for other actives, replaces propylene glycol in Korean formulas.
Moisturizing
Evidence by route
Topical application
CWeak evidence. In vitro data, open-label studies, or expert consensus.
Mild humectant with good tolerance. Boosts active penetration into the stratum corneum, rarely triggers irritation.
Tolerability and safety
Irritation potential
LowAllergen risk
LowPregnancy
SafeSkin types
Suitable for
NormalDryOilyCombinationSensitive
Frequently asked questions
Is Propanediol safe during pregnancy?
Propanediol is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is Propanediol for?
Propanediol suits: normal, dry, oily, combination, sensitive.