POLYESTER-7
POLYESTER-7 is the label name for this copolymer. It is a large molecule made from adipic acid, trimethylolpropane, neopentyl glycol, and hexanediol, so it is neither an oil nor a plant extract nor a single small molecule. Bringing those building blocks together produces a polyester chain with its own behavior in a cosmetic formula.
POLYESTER-7: what it is
POLYESTER-7 is the label name for this copolymer. It is a large molecule made from adipic acid, trimethylolpropane, neopentyl glycol, and hexanediol, so it is neither an oil nor a plant extract nor a single small molecule. Bringing those building blocks together produces a polyester chain with its own behavior in a cosmetic formula.
The name may resemble other polyesters, but the number 7 identifies a specific composition within cosmetic nomenclature. It is a random copolymer formed from those four starting materials. That distinction helps explain why it is used as a structuring material in a formula rather than as a skin-treatment active.
POLYESTER-7: what it does in cosmetics
POLYESTER-7 can form a thin film on the surface where a product is applied. In practical terms, that kind of material can help keep application more even and give body to the layer left by makeup or another wear-oriented cosmetic. Viscosity control also helps set how thick or fluid the product is, so it does not spread as an overly runny or overly thick preparation.
Here, skin conditioning relates mainly to the feel and appearance a formula leaves on the surface; it does not mean treating a skin condition. Some commercial raw materials pair POLYESTER-7 with another ingredient for sun-care products. The results and use recommendations for those mixtures cannot automatically be applied to POLYESTER-7 on its own or to every product that lists it.
Products containing this ingredient
See which products include it and the name used in each composition.
