The body can make some peptides on its own
Blood Adv 6:59805994 Ignacio A, Shah K, Bernier-Latmani J, Koller Y, Coakley G, Moyat M, Hamelin R, Armand F, Wong NC, Ramay H et al (2022) Small intestinal resident eosinophils maintain gut homeostasis following microbial colonization
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The Broad Institute gene-expression dataset documents changes across 4,192 human genes following GHK exposure
What FDA has said recently (high-level, patient-friendly summary) FDA maintains a page describing certain bulk drug substances used in compounding that may present significant safety risks, including AOD-9604, noting concerns such as potential immunogenicity and limited safety-related information for some uses/routes
Disguised Alpha DSIP Aerosol Spray Kit is supplied as a research preparation kit containing the product vial, saline solution, and Aerosol spray bottle