HUMAN BLOOD DERIVED NATURAL KILLER CELL CONDITIONED MEDIA EXTRACT is graded A (Safe) by Expert·ING, based on COSING regulatory data.

HUMAN BLOOD DERIVED NATURAL KILLER CELL CONDITIONED MEDIA EXTRACT

Safety grade: A

This ingredient is derived from natural killer cells—specialized immune cells from human blood—that have been processed to extract beneficial compounds. When added to skincare products, it's designed to support your skin's natural defense and renewal processes, helping maintain a healthier complexion.

Graded using: COSING.

Last verified: June 9, 2026