Bis-Isobutyl PEG-24/PPG-7/Dimethicone Copolymer
AKA “Silicone Copolymer, Silicone Blend”
Synthetic
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Ingredient Facts
Bis-isobutyl peg-24/ppg-7/dimethicone copolymer
AKA: Silicone Copolymer, Silicone Blend
Synthetic · Film Forming | Humectant · EWG: 4
Plant-Derived
Humectant
Occlusive
Silicone
Synthetic
Not Clean
A lightweight conditioning agent that helps lock in moisture and create a smooth, protective layer on skin and hair.
CAS #
158451-77-5
Form
Liquid
Plant-Derived
Synthetic. Synthesized from polydimethylsiloxane (silicone) polymers combined with polyethylene glycol and polypropylene glycol units. Produced through step-wise polymerization and coupling reactions to create the branched copolymer structure.
Function
Film Forming | Humectant
Benefits
Locks In Moisture
Traditional Use
Developed as a cosmetic conditioning agent and emollient in contemporary formulations to enhance product stability and sensory feel, with origins in synthetic polymer chemistry.
Skin Types
all-skin-types
Best For
Target
Dryness
Melanin-Rich Skin
Suitable
Pregnancy Safe
Yes
EWG Score4
CIR Safety Findings
medical-approval, all-shades-safe, Not a Sensitizer
Regulatory Agencies
Verified Feb 2026
Data: CosIng · EWG · CIR