A denaturant and solvent used in small amounts. It makes the alcohol base undrinkable and helps dissolve other ingredients. At cosmetic levels it does not dry skin on its own.
Topical application
BLimited evidence. One RCT or several controlled studies with limitations.
A technical denaturant. Safe at cosmetic levels.
T-Butyl Alcohol is a simple volatile alcohol. INCI: T-Butyl Alcohol. In a formula it works as a solvent and denaturant: it dissolves other components, helps make ethyl alcohol undrinkable in denatured formulas, and adjusts viscosity. It is a functional component, not a skincare active. It is used in small amounts, and the volatile part evaporates quickly after application. Pregnancy safety. At cosmetic concentrations topical use is systemically negligible, with no evidence of harm. It can be used during pregnancy and lactation. Tolerance. At working concentrations, irritation and allergen potential are low.
Irritation potential
LowAllergen risk
LowPregnancy
SafeSuitable for
The Evigrade extension adds an evidence panel to iHerb, Sephora, Druni and 12 more stores. This ingredient and every other one in the product show evidence-tier, allergen risk and pregnancy/lactation flags at a glance.
T-Butyl Alcohol is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
T-Butyl Alcohol suits: normal, dry, combination, oily, sensitive.
A denaturant and solvent used in small amounts.
The INCI name is T-Butyl Alcohol. It may also appear as: Трет-бутиловый спирт, tert-Butanol.
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