CYCLIZED LEUCONOSTOC FERMENT FILTRATE is graded A (Safe) by Expert·ING, based on COSING regulatory data.

CYCLIZED LEUCONOSTOC FERMENT FILTRATE

Safety grade: A

This ingredient is created by fermenting a naturally occurring bacteria called Leuconostoc, then filtering and processing the result. It's used in skincare products to help hydrate and condition your skin, while also supporting the skin's natural balance and appearance.

Graded using: COSING.

Last verified: June 9, 2026