Snapshot
- Overview
- A gas propellant that helps sprays and foams dispense evenly.
- Category
- Cleansing
- Type
- Solvent
Isobutane
Isobutane is a low-molecular-weight hydrocarbon gas used in cosmetic aerosols as a propellant and volatile solvent. It dispenses foams and sprays and creates light textures that evaporate quickly after application.
Like this ingredient?
Our take
Is Isobutane a Good Ingredient?
Rated Fair because it's useful as a propellant for fine mists and foams but offers no direct skincare benefit of its own, so the rating reflects functional utility only. It's downgraded further by the inhalation and flammability risks that come with aerosol use.
What it does
Skin Benefits
Enables fine mists and airy foams for even coverage; it does not provide direct skincare benefits beyond delivery. Evidence for skin improvements is limited.
Where you'll find it
Uses in Skincare & Cosmetics
Acts as the propellant in aerosol spray sunscreens, shave foams, setting sprays, dry shampoos, and cleansing mousses.
Before you use it
Safety
Highly flammable; keep away from heat, sparks, or open flame and use in well-ventilated areas to minimize inhalation. Can cause transient dryness or irritation on compromised skin. Many regions require flammability warnings on aerosols.
Products with Isobutane
