The copper content of GHK-Cu formulations has been a theoretical safety consideration, given that excessive copper can be toxic - however, the amounts used in cosmetic and research applications are extremely small, the copper is tightly chelated by the peptide (reducing free copper availability), and topical absorption of copper from these products appears minimal and well below levels that would cause systemic copper accumulation or toxicity
The cream format naturally provides hydration, but glutathione takes it further by supporting your skin's natural moisture barrier function
It makes your hair maintain natural hair color, preventing premature greying, improves scalp health by reducing inflammation, and strengthens hair strands by preventing oxidative stress
Applications in tissue regeneration extend beyond wound healing to include treatment of photoaged skin , stretch marks , and various forms of tissue damage
Fact: These two nutrients actually support each other
Targeting Glutathione Metabolism Partner in Crime in Anticancer Therapy