T-Butyl Alcohol
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.
Supporting ingredient
It gives a product its texture, stability or shelf life. It has no claimed effect on the skin, so an efficacy tier does not apply. What is known about its safety is below
Tolerability and safety
- Irritation potential
- Low
- Allergen risk
- Low
- Pregnancy
- Safe
- Suitable for
- Normal, Dry, Combination, Oily, Sensitive
About this ingredient
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.
Frequently asked questions
Is T-Butyl Alcohol safe during pregnancy?
T-Butyl Alcohol is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is T-Butyl Alcohol for?
T-Butyl Alcohol suits: normal, dry, combination, oily, sensitive.
What is T-Butyl Alcohol and what does it do in cosmetics?
A denaturant and solvent used in small amounts.
What's the INCI name for T-Butyl Alcohol?
The INCI name is T-Butyl Alcohol. It may also appear as: tert-Butanol.
See T-Butyl Alcohol in a product composition right on the store page
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.
Similar role in the formula
Other functional ingredients
Talc, Tapioca Starch, TEA-Lauryl Sulfate, TEA-Sulfate, Candelilla Wax, Gamma-Octalactone, Oxidized Polyethylene, Potassium Hydroxide
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