POLYGONUM CUSPIDATUM ROOT EXTRACELLULAR VESICLES is graded A (Safe) by Expert·ING, based on COSING regulatory data.

POLYGONUM CUSPIDATUM ROOT EXTRACELLULAR VESICLES

Safety grade: A

Derived from Japanese knotweed plant roots, this ingredient contains tiny natural particles that help support skin's natural repair processes and improve hydration. It's used in skincare products to help maintain healthy, resilient skin and may reduce the appearance of fine lines.

Graded using: COSING.

Last verified: June 9, 2026