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ghk-cu maximum safe dose or side effects high dose for Hair Growth: Protocols GHK-Cu Peptide | Benefits, Dosage,
Description
Inflammopharmacology 14(56):214221 Sikiric P, Seiwerth S, Brcic L, Sever M, Klicek R, Radic B, et al (2010) Revised Robert's cytoprotection and adaptive cytoprotection and stable gastric pentadecapeptide BPC 157
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But those with diets low in animal protein, like vegetarians or vegans, are at high risk for deficiencies

Xu et al., 2018
Which peptides cannot be taken sublingually

Limited human self-experiments note mild injection-site discomfort, brief headaches, and occasional nausea
