Isopentyldiol
Branched five-carbon diol. Dissolves both oil- and water-soluble actives, boosts their penetration and acts as a mild preservative booster.
Evidence by route
Topical application
CWeak evidence. In vitro data, open-label studies, or expert consensus.
Mild solvent with good tolerance. Penetration-booster effect is gentler than that of propylene glycol.
Tolerability and safety
Irritation potential
LowAllergen risk
LowPregnancy
SafeSkin types
Suitable for
NormalDryOilyCombinationSensitive
Frequently asked questions
Is Isopentyldiol safe during pregnancy?
Isopentyldiol is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is Isopentyldiol for?
Isopentyldiol suits: normal, dry, oily, combination, sensitive.