Glycereth-7 Diisononanoate
AKA “PEG-7 Glyceryl Ether Diisononanoate
Emollient
Ingredient Facts
Glycereth-7 diisononanoate
AKA: PEG-7 Glyceryl Ether Diisononanoate
Emollient · Emollient · EWG: 4
Synthetic
Emollient
Solvent
Skin Conditioner
Not Clean
Poly(oxy-1,2-ethanediyl), .alpha.-hydro-.omega.-hydroxy-, ether with 1,2,3-propanetriol (1:1), diisononanoate (7 mol EO average molar ratio)
CAS #
125804-15-1
Form
Liquid
See origin →
Functions
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Solvent
Dissolves other ingredients so they distribute evenly in the formula. Often the invisible "base" everything else is mixed into.
Locks In Moisture
Traditional Use
A modern synthetic ester derived from glycerin and ethylene oxide, developed in the 20th century. Created as an emollient and emulsifier for cosmetic formulations.
Skin Types
all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Jun 2026
Data: CosIng · EWG · CIR