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

NOSTOC COMMUNE EXTRACT

Safety grade: A

A natural ingredient derived from a freshwater algae, this extract is used in skincare products for its hydrating and soothing properties. It helps moisturize the skin and may support its natural barrier function, making it a common choice in lotions and serums designed to calm and refresh tired skin.

Graded using: COSING.

Last verified: June 9, 2026