allergic reaction to ghk cu If you injected GHK-Cu or MOTS-C and got a huge red welt that felt like an reaction, that's almost certainly a histamine response. Your skin is full of mast cells packed GHK-Cu Topical Serum: Benefits, Mechanism
Description
Similarly, the administration of 50 IU IN-OXT to SZ patients and age-matched controls found no improvements of impaired judgement in SZ patients [167]

[DOI] [PMC free article] [PubMed] [Google Scholar] 20.Alam M.M., Iqbal S., Naseem I
Nerve guidance conduits based on double-layered scaffolds of electrospun nanofibers for repairing the peripheral nervous system

These peptides are often used as part of a layered or sequential protocol rather than all at once from day one
