POLYCYCLOPENTADIENE is graded A (Safe) by Expert·ING, based on COSING regulatory data.

POLYCYCLOPENTADIENE

Safety grade: A

Polycyclopentadiene is a synthetic polymer made from petroleum-derived chemicals. It's a thick, sticky substance used to adjust how easily a product spreads and flows.

This ingredient thickens cosmetic products and controls their texture, making them easier to apply and use while preventing separation of ingredients.

Graded using: COSING.

Last verified: May 26, 2026