Common Name(s): Polyester-6,neopentyl glycol/trimellitic anhydride/glycerin copolymer (commercial type)

DESCRIPTION

What It Does: Creates a smooth, glossy film on skin and improves long-wear performance of makeup.

Why It's Used: A synthetic polyester polymer providing film-forming emolliency and adhesion in long-wear color cosmetics.

How It Works: Polyester backbone forms a continuous flexible film on skin; pendant ester groups provide emolliency; film-forming character improves color retention and longevity.

Typically Found In: Lipsticks,glosses,long-wear foundations,eye shadows,mascaras

TECHNICAL DETAILS

Primary Category: Functional ingredient – film former

Secondary Functions: Emollient,adhesion promoting,texture modification

Application Areas:

Typical Concentration Range: 1%–20%

SOURCING & ETHICS

Vegan Status: Yes

Halal Status: Yes

Source Notes: Synthetic polyester polymer; petrochemical-derived diols and diacids.

SKIN COMPATIBILITY

Irritancy Rating: 1/5 – very low

Comedogenicity Rating: 1/5 – low

Sensitivity Concerns: Generally well tolerated in color cosmetic applications.

Safe for Sensitive Skin: Yes

SAFETY & COMPATIBILITY

Safety Profile: Good safety profile. ewg score: 1–2.

Works Well With: Waxes,silicones,color pigments,emollients

Avoid Combining With: No significant incompatibilities

SCIENTIFIC NOTE

Polyester-6 is a commercial name covering a class of polyester polymers used in color cosmetics; film-forming polyesters provide the combination of glossy emolliency (from pendant ester groups) and durable wear characteristic of high-end lip products.

Last Verified: 2026-03-27

Primary Sources: Cosing database,inci dictionary