HEAD-TO-HEAD

GHK-Cu VS BPC-157

GHK-Cu and BPC-157 are two of the most-asked tissue-repair research peptides. GHK-Cu is a copper-binding tripeptide that drives transcriptional collagen + matrix synthesis in dermal fibroblasts (skin-side biology). BPC-157 is a 15-aa gastric-origin pentadecapeptide acting through VEGF, NO, and growth-hormone-receptor upregulation (gut + connective-tissue cytoprotection). Different tissue targets, complementary mechanisms.

A · No. 004

GHK-Cu

Copper-Peptide Skin Remodeler

B · No. 003

BPC-157

Pentadecapeptide Cytoprotection

SIDE BY SIDE

FIELD

A · GHK-Cu

B · BPC-157

Class

Tripeptide-copper complex (Gly-His-Lys + Cu²⁺)

Synthetic 15-aa peptide (gastric-origin fragment)

Sequence

Gly-His-Lys + Cu²⁺

Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val

Mechanism

Cu²⁺-dependent transcriptional gene modulation · collagen + matrix induction

VEGF / NO / GHR upregulation · cytoprotection paradigm

Half-life

Short (minutes) plasma; longer in tissue depots

~4 hours (rat, intraperitoneal)

Primary research focus

Skin matrix synthesis · hair-follicle biology · cosmetic

GI mucosal protection · tendon-ligament healing

FDA status

Topical regulated as cosmetic ingredient · injectable research-use only

FDA Cat 2 503A bulks list (Sept 2023) · research-use only

WADA status

Not listed (2026)

Prohibited at all times (S0)

Topical use

Yes · widely formulated in cosmetics at 0.01–0.1%

No · injection-only research compound

WHICH IS BETTER · BY GOAL

▶ Skin matrix + collagen researchA · GHK-Cu

GHK-Cu directly induces collagen, elastin, and glycosaminoglycan synthesis in dermal fibroblasts (Pickart 2008 PMID 18644225). This is the core characterized mechanism.

▶ GI mucosal protection researchB · BPC-157

BPC-157 has the Sikiric multi-paper rat-model evidence base for gastric and intestinal cytoprotection. GHK-Cu is not specifically studied in gut biology.

▶ Tendon / ligament researchB · BPC-157

Animal-model evidence for BPC-157 in Achilles detachment (Krivic 2006 PMID 16583442) and transected quadriceps (Staresinic 2006 PMID 16609979). GHK-Cu not specifically studied in tendon repair.

▶ Hair-follicle researchA · GHK-Cu

GHK-Cu enlarges hair follicles and prolongs the anagen phase in rodent models. BPC-157 not specifically studied in hair biology.

STACKING NOTE

GHK-Cu + BPC-157 + TB-500 is the Wolverine Blend formulation · combining matrix synthesis (GHK-Cu), cytoprotection (BPC-157), and cell migration (TB-500) across the major stages of tissue repair. No peer-reviewed publication studies the three-component blend as a unit.

SOURCED FROM GIGACOMPOUNDS

Both compounds are available as research-grade material at GigaCompounds · ≥99% purity · per-batch CoA. For laboratory research use only.

SOURCE AT GIGACOMPOUNDS ▶