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Research indicates that GHK-Cu can upregulate TGF- receptor expression on fibroblasts, effectively sensitizing these cells to pro-collagen signals

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In the case of BPC-157, compounders obtain the raw peptide (synthesized via solid-phase chemical synthesis) and then prepare it into injectable vials, nasal sprays, or capsules per a doctors prescription. Clinics and online research chemical websites also sell BPC-157 directly to consumers, often labeling it for research use only to skirt regulations

Medically reviewed by Missy Zammichieli, DNP, APRN, FNP-BC Published March 24, 2026 Book Consultation WHAT IS GHK-Cu