AKA: 3-hexylheptamethyltrisiloxane, 428-700-5, 1873-90-1, 3-hexyl-1, 1, 3, 5, 5-heptamethyltrisiloxane, Trisiloxane, Hexyl-methyl-bis(trimethylsilyloxy)silane
WHAT IS IT? Synthetic
Emollient
Skin Conditioner
Not Clean
Origin Hexyl methicone is a silicone compound derived from silica and organic alkyl groups through chemical synthesis. It is produced by hydrosilylation, chemically bonding hexyl groups to polydimethylsiloxane backbone chains.
Poly[oxy(hexylmethylsilylene)],.alpha.-trimethylsilyl),.omega.-[(trimethylsilyl)oxy]-
IS IT FOR ME? Pregnancy & Breastfeeding Safe
Yes
WHAT’S IT DO? Functions
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
CAN I TRUST THIS? The paper trail
🔬 Peer-reviewed none on file
🛡️ Safety-assessed 3 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
IS IT CLEAN? Concentration Guide
CIR lists it as not reported to be in use.
CIR · report published 2022
Regulatory Status
JAPAN ⚠ restricted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR
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