Ingredient Directory
Low ConcernVegan

Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer

Crosslinked polyester of 2,2,4-trimethyl-1,3-pentanediol, adipic acid, and glycerin

Safety Flags
Safety Notes

Crosslinked polyester forming flexible, breathable films on skin; glycerin incorporation gives hydrophilic character and skin-feel benefits; crosslinked structure limits dermal absorption; relatively newer ingredient with limited independent safety literature but no identified safety concerns from constituent monomers.

Function & Common Use

Function

Film Former / Binder / Skin Conditioning Agent

Category

Film Formers

Common In

Foundations, skin care, long-wear makeup, primers, lip products

Origin

Synthetic

Concentration Limits

India (CDSCO)

None

EU Cosmetics Reg.

None

US FDA (21 CFR)

None

Korea (MFDS)

None

Format restriction: None

Baby restriction: No

Pregnancy: No

IFRA: No

Frequently Asked Questions

Is Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer safe to use in skincare?

Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer has a Low concern rating from The Clean Sheet. Crosslinked polyester forming flexible, breathable films on skin; glycerin incorporation gives hydrophilic character and skin-feel benefits; crosslinked structure limits dermal absorption; relatively newer ingredient with limited independent safety literature but no identified safety concerns from constituent monomers.

Is Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer allowed in India?

Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer is currently classified as "Permitted" under Indian cosmetics regulations. The maximum permitted concentration is None.

What is Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer used for in cosmetics?

Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer functions as: Film Former / Binder / Skin Conditioning Agent. It is commonly found in: Foundations, skin care, long-wear makeup, primers, lip products.

Can Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer cause an allergic reaction?

Yes. Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer has an allergen flag (No). If you have sensitive skin or known fragrance/contact allergies, patch-test products containing this ingredient before full use.

Is Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer safe for babies?

Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer has baby/child restrictions: No. Avoid using products containing this ingredient on infants unless specifically formulated and labelled for baby use.

TCS Assessment
Low Concern
Data Confidence
Medium
Based on peer-reviewed safety data, regulatory status, and expert review by The Clean Sheet panel.

Regulatory Status

India (CDSCO)
Permitted
EU
Permitted
US FDA
Permitted
Korea (MFDS)
Permitted
Australia (TGA)
Permitted; standard cosmetic ingredient under TGA cosmetic framework
Canada (NHPID)
Permitted; not restricted under Health Canada cosmetic regulations

EU Annex: None

Identifiers

CAS187728-12-7
ECNot assigned (polymer)

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