C30-45 Alkyl Methicone
AKA “Silicone, Alkyl Methicone
Synthetic
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Ingredient Facts
C30-45 alkyl methicone
AKA: Silicone
Synthetic · Skin Conditioning - Emollient | Viscosity Controlling · EWG: 2
Plant-Derived
Emollient
Skin Conditioner
Silicone
Synthetic
Clean
A lightweight silicone that glides smoothly onto skin, leaving it soft and moisturized while keeping the formula's texture light and easy to apply.
CAS #
246864-88-0
Form
Liquid
Plant-Derived
Synthetic. Belongs to the silicone chemical family, synthesized from silicon-based polymers with alkyl chain modifications. Produced through hydrosilylation reactions that attach long-chain alkyl groups to polydimethylsiloxane backbone polymers.
Function
Skin Conditioning - Emollient | Viscosity Controlling
Benefits
Locks In Moisture
Traditional Use
Developed in the mid-20th century as a silicone-based polymer designed to provide a lightweight, non-greasy feel and water resistance in skincare and cosmetic formulations.
Skin Types
all-skin-types, gentle
Best For
Target
General
Melanin-Rich Skin
Suitable
Pregnancy Safe
Yes
EWG Score2
CIR Safety Findings
ewg-2, medical-approval, pregnancy-nursing-safe, all-shades-safe, Not a Sensitizer
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: CosIng · EWG · CIR