Octadecene ●
TL;DR. This ingredient is used mainly as an emollient and oil-phase solvent, adding slip and a lightweight hydrocarbon feel to skin care, makeup, and hair care formulas.
What does Octadecene do in a cosmetic formula?
This ingredient is used mainly as an emollient and oil-phase solvent, adding slip and a lightweight hydrocarbon feel to skin care, makeup, and hair care formulas.
Is Octadecene clean?
From a clean-beauty lens, it has low expected irritation and sensitization potential, but it can draw scrutiny because it is usually synthetic and petrochemical-derived. It is not a common restricted-list trigger, yet strict natural-positioned standards may not accept it.
Is Octadecene sustainable?
It is typically made from fossil-derived hydrocarbon streams, though bio-based routes are technically possible when renewable feedstocks are used. It is hydrophobic and slower to biodegrade than many oxygenated emollients, so its environmental profile is less aligned with green-chemistry preferences.
Is Octadecene COSMOS-approved?
It is generally not permitted under COSMOS-organic or COSMOS-natural when supplied as a synthetic petrochemical hydrocarbon. Its Green Chemistry fit is limited unless the supplier can document renewable sourcing and strong biodegradation performance.
How does Octadecene work chemically?
The molecule is an 18-carbon, nonpolar unsaturated hydrocarbon with one carbon-carbon double bond, making it oil-soluble, water-insoluble, and compatible with oils and waxes. The double bond can oxidize over time, so antioxidant support and air-limiting packaging are useful when it is present at meaningful levels; it is not pH-sensitive under normal cosmetic conditions.
Last updated 2026-05-13