Because the nutrients enter your bloodstream directly, you feel the difference faster than with oral supplements
But dont wait for the consensus to change soon
Product Attributes CAS # : 137525-51-0 Molecular Formula : C62H98N16O22 Sequence (AA) : GEPPPGKPADDAGLV Molecular Weight : 1419.5 g/mol PubChem CID : 9941957 Half-Life : ~4-6 hours Synonyms : Body Protection Compound-157, Gastric Pentadecapeptide BPC157, PL 14736, Bepecin, PL-10 Type : Synthetic research peptide (cytoprotective fragment) Research Focus : Recovery & Performance, Immunity & Inflammation Scientific References Emerging use of BPC-157 in orthopaedic sports medicine Animal | In vitro BPC-157 benefits, dosage, and side effects Observational | Animal | In vitro BPC 157: science-backed uses, benefits, dosage, and safety Observational | Animal | In vitro Pentadecapeptide BPC 157 enhances the growth hormone receptor expression Animal | In vitro Multifunctionality and possible medical application of the BPC 157 peptide Observational | Animal | In vitro BPC-157: miracle healing peptide or hidden danger

The general GHK-Cu timeline runs 6-8 weeks before visible changes set in - that is, for topical use
The Reality Check: What the Hype Gets Wrong The biohacking community loves GHK-Cu right now, and that enthusiasm is outrunning the evidence in a few specific ways