Isobutane
A propellant gas in aerosol cans. It pushes the product out of the can, evaporates in the finished spray and leaves nothing on skin.
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
Isobutane is a liquefied hydrocarbon gas. INCI: Isobutane. In a formula it has one job: it serves as a propellant in aerosols, creating pressure in the can and pushing the product out as a spray or foam (mousses, dry shampoos, shaving foams, spray deodorants). It is a functional component, not a skincare active. It does not act on skin, and after spraying the gas evaporates quickly. Safety. It is flammable, like all aerosol propellants, so cans are kept away from fire. On skin it is inert. Pregnancy safety: topically systemically negligible, with no evidence of harm. Tolerance. Irritation and allergen potential are low.
Frequently asked questions
Is Isobutane safe during pregnancy?
Isobutane is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is Isobutane for?
Isobutane suits: normal, dry, combination, oily, sensitive.
What is Isobutane and what does it do in cosmetics?
A propellant gas in aerosol cans.
What's the INCI name for Isobutane?
The INCI name is Isobutane.
See Isobutane 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
Isobutylparaben, Isoceteth-10, Isoceteth-20, Isodecyl Salicylate, Perlite, Sodium Citrate, 4-Terpineol, CI 61570
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