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

PALMITOYL ISOLEUCINE

Safety grade: A

This is a gentle amino acid derivative made by combining palmitic acid (a natural fatty acid) with isoleucine (a building block of proteins). It works to strengthen and protect your skin's natural barrier.

This ingredient helps protect and condition the skin by strengthening its natural moisture barrier and improving skin resilience against environmental stressors.

Graded using: COSING, FDA.

Last verified: May 26, 2026