Adequate glutathione levels are important for a healthy immune system
Because of this, oral versions are typically sold "for research purposes only" and are not intended for everyday consumer use
The supplementation also appeared to have a direct effect on immune function
GHK-Cu vs Adjacent Categories Format Topical GHK-Cu (cosmetic) What it is Copper Tripeptide-1 in serums and creams Evidence base Strongest human evidence (Leyden 2002, NEEL 2023) Typical use Daily anti-aging skincare Format Injectable GHK-Cu (research-use) What it is Reconstituted vial, SubQ injection Evidence base Mostly preclinical
Note that the metabolic pathway of -MTrp follows [176] the biosynthetic route of serotonin from tryptophan (Trp) [177]
Texture: Cream Consistency: Velvety-rich Scent: Natural, aromatic rose * This product is free from nuts, gluten, fish, milk, corn, phthalates, sulfates, parabens, talc, and mineral oil