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Someone buys a strong copper peptide serum, applies it twice daily from day one, experiences significant irritation, and concludes that copper peptides don't work for them
Common reconstitution approaches create concentrations enabling convenient dose measurement with insulin syringes
The strongest human clinical evidence is for topical use, including the Leyden 2002 photoaging trial and a 2023 NEEL gel topical study reporting an average 28% increase in skin collagen density at 3 months
Another study aimed to investigate the possible mechanism by which BPC-157 speed up the healing of the injured tendon
Hydroxocobalamin and adenosylcobalamin also exist but see less use in standard wellness care settings
