Butane
AKA “n-Butane, Diethyl, Methylethylmethane, Butanen, Butani, Butyl hydride, HC 600, A 21 (lowing agent)”
Synthetic
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Ingredient Facts
Butane
AKA: N-Butane, Diethyl, Methylethylmethane, Butanen, Butani, Butyl hydride, HC 600, A 21 (lowing agent)
Synthetic · Propellant · EWG: 7
Plant-Derived
Synthetic
Not Clean
Butane is a propellant gas that helps dispense the product from the aerosol container in a fine, even mist.
Solubility 61 mg/L at 68 °F (NTP, 1992)
Formula
C4H10
Mol. Weight
58.12
CAS #
106-97-8
Form
Liquid
Plant-Derived
Synthetic. Butane is derived from crude oil or natural gas through fractional distillation of petroleum hydrocarbons. It is isolated and purified through separation and liquefaction processes under pressure and cooling.
Function
Propellant
Benefits
Dispenses Product
Antioxidant Protection
Reduces Inflammation
Propels product from container
Traditional Use
A hydrocarbon gas first synthesized in the 19th century and adopted by the cosmetics industry in the mid-20th century as a propellant for aerosol sprays and foam products.
Skin Types
all-skin-types
Best For
Target
General
Melanin-Rich Skin
Suitable
Pregnancy Safe
Yes
Verified Feb 2026 · 🧪 = conflict
Data: PubChem · CosIng · EWG · CIR