Methicone
AKA “METHICONE [INCI], RefChem:811725, DTXCID201436379, TXYXVOOPRILIHR-UHFFFAOYSA-N, 2-OXASILINANE
Synthetic
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Ingredient Facts
Methicone
AKA: METHICONE [INCI], RefChem:811725, DTXCID201436379, TXYXVOOPRILIHR-UHFFFAOYSA-N, 2-OXASILINANE
Synthetic · Antistatic | Conditioning | Emollient · EWG: 4
Plant-Derived
Emollient
Skin Conditioner
Silicone
Synthetic
Clean
A silicone that smooths hair and skin while reducing frizz and static. It creates a soft, conditioned feel without leaving residue.
Family
N/A – Methicone is not derived from plants
Formula
C5H11OSi
Mol. Weight
115.23
CAS #
9004-73-3
Plant-Derived
Botanical-Derived Synthetic. Methicone is derived from dimethicone, a silicone polymer made from silicon and methyl groups. It is synthesized through polymerization of dimethylsiloxane monomers via hydrolytic condensation processes.
Function
Antistatic | Conditioning | Emollient
Benefits
Reduces Static
Conditions Skin
Softens & Smooths
Reduces Flyaways
Traditional Use
Developed as a silicone-based polymer in the mid-20th century. Introduced to cosmetics in the 1950s-1960s as a skin protectant and water-repellent agent.
Skin Types
all-skin-types
Best For
Target
General
Melanin-Rich Skin
Suitable
Pregnancy Safe
Yes
EWG Score4
CIR Safety Findings
all-shades-safe, Not a Sensitizer
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: PubChem · CosIng · EWG · CIR