Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer

Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer 1
Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer 2
Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer 3
Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer 4
Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer 5
AKA: Polyester Resin, Trimethylpentanediol Adipate Glycerin Crosspolymer
Synthetic
Skin Conditioner
Acid
Clean
Hexanedioic acid, crosspolymer with 2,2,4-trimethyl-1,3-pentanediol and 1,2,3-propanetriol
Form
Liquid
State
Solid
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.
Draws water to skin
Locks in moisture
Strengthens skin barrier
Traditional Use
Modern synthetic polymer developed for cosmetics in the late 20th century. Designed to improve texture and stability in skincare formulations and provide skin conditioning properties.
EWG
1
CIR
Safe
Pregnancy
Yes
CIR Safety Findings
ewg-1
pregnancy-nursing-safe
all-shades-safe
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Skin Types
●all-skin-types, gentle
Best For
Dehydration
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: CosIng · EWG · CIR