glutathione is composed of The Master Antioxidant With Enormous Benefits - Wellness By Rosh Glutathione Supplements: A Complete Guide

So why have we got that difference

In other words, our glutathione (GSH) requirements remain the same, but the cells stop producing it in the quantities needed because homeostasis has been reached

Its more commonly used to promote tissue repair and reduce inflammation

The CIR Expert Panel has evaluated the scientific data and found this ingredient to be safe, non-irritating, and non-sensitizing at concentrations up to 5% (it's even approved by the FDA as an OTC eye drop ingredient)

Complementary electron spin resonance spin trapping techniques suggested selective interactions between GHK and specific radical species