peptide cu ghk Neurogan Health GHK-CU Copper Peptide, 120 mcg, 60 Tablets : Target Stimulates production of collagen and elastin GHK-Cu Copper Peptide Serum –

Oncologist 23 , 5261 (2018)

According to the original developer documentation and supporting preclinical work, the substitution was engineered to eliminate protein biosynthesis stimulation while retaining lipolytic activity, removing the muscle-growth signaling associated with full-length HGH

This guide covers exactly how long different peptides last, proper storage temperatures for maximum shelf life, signs your peptides have degraded (visual inspection, smell, effectiveness), differences between lyophilized vs liquid peptides, bacteriostatic vs sterile water impact on shelf life, and specific storage guidelines for common peptides (BPC-157, semaglutide, GHK-Cu, CJC-1295)

Topically, they may help stimulate collagen production, support wound healing, and reduce inflammation

Vitamin injections are a type of treatment that delivers vitamins and minerals directly into the bloodstream

So that's a solid place to start