PEG-7 Dimethicone
molecular structure · PubChem
AKA: Polyethylene Glycol 7 Dimethicone
Synthetic
Skin Conditioner
Hair Care
Silicone
Clean
OriginDerived from dimethicone, a silicone polymer, combined with polyethylene glycol chains through ethoxylation. Synthesized by attaching polyethylene glycol units to dimethicone via ethoxylation reaction.
Silicones and siloxanes, dimethyl, hydropoly(oxy-1,2-ethanediyl)methyl, trimethylsilyl terminated (7 mol EO average molar ratio)
Form
Liquid
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Hair Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Locks in moisture
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed3 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
2
CIR
Safe as used
Pregnancy
Yes
Concentration Guide
Leave-on4.3–5%
Rinse-offNot reported
0%50%100%
CIR reported use · report published 2014
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR
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