In in-vitro research, the GHK peptide (copper tripeptide-1) has been characterized as a modulator of multiple cellular pathways relevant to skin regeneration
Conversely, oral glutathione supplements show very little benefit over injectable forms
Improves Skin Density and Elasticity : GHK-Cu tightens loose skin, reverses thinning, and enhances barrier function, making it ideal for mature or photodamaged skin
Conversely, the D-CuP group demonstrated enhanced wound healing, leaving a residual wound area of just 9.8%, while the G/D-CuP group exhibited the most pronounced wound healing, with only 2.8% of the wound area remaining
Similarly, the cytotoxicity of the polypeptide antibiotic neocarzinostatin is greatly enhanced by thiols such as GSH, although in this case there is no apparent requirement for GST catalysis [25], [18]