Research compound comparison · research use
GHK-Cu vs BPC-157: two compounds people confuse, with almost nothing in common.
GHK-Cu is a copper-binding tripeptide; BPC-157 is a gastric pentadecapeptide. They turn up in the same “repair” searches, but they are different molecules with different cofactors and live in separate bodies of literature. This page lays out what each one actually is, which Titan stocks, and the documentation standard each chemistry demands — so you match the compound to your study, not to the marketing.
| Attribute | GHK-Cu | BPC-157 |
|---|---|---|
| Class | Copper-binding tripeptide (Gly-His-Lys + Cu²⁺) | Pentadecapeptide of gastric origin (15 residues) |
| Structure | Three amino acids chelating a copper ion | Fifteen-residue chain, no metal cofactor |
| Literature context | Copper transport, extracellular-matrix & skin biology | Angiogenesis and GI-mucosa biology |
| Titan availability | Not stocked — outside Titan's research catalog | In catalog: nasal spray + 5mg lyophilized vial |
| Typical format | Lyophilized powder or topical-research solution | Ready-to-use nasal spray or reconstituted vial |
| Documentation standard | Verify identity + copper content separately | Lot-matched release sheet, HPLC + identity |
Different molecules, not variants
GHK-Cu is a three-amino-acid peptide bound to a copper ion (Gly-His-Lys-Cu²⁺); BPC-157 is a fifteen-residue gastric pentadecapeptide with no metal cofactor. They are not the same family, not 'stronger or weaker' versions of each other, and they appear in entirely separate bodies of literature.
Browse research index →Only one is in Titan's catalog
Titan stocks BPC-157 as a ready-to-use nasal spray and a 5mg lyophilized vial. GHK-Cu is not part of the Titan research catalog, so this page is a like-for-like comparison rather than a sales page for both — if your design needs BPC-157, the product links below go straight to it.
BPC-157 spray vs vial →Copper peptides need an extra verification step
A copper-bound peptide like GHK-Cu has two things to confirm — peptide identity and the copper content — whereas a single-chain peptide like BPC-157 is verified against an HPLC purity target with identity confirmation on a lot-matched release sheet. The paper-trail you should demand differs with the chemistry.
How to read a COA →Pick by your literature, ignore the marketing overlap
GHK-Cu and BPC-157 get marketed together under vague 'repair' or 'recovery' umbrellas, but a study design references one specific compound for a specific reason. Match the compound to the paper you are working from, confirm the lot documentation, then choose the format. Treatment or recovery claims are a red flag, not a selling point.
Supplier checklist →Related reading
Keep comparing before you commit.
See the BPC-157 product pages.
Titan stocks BPC-157, not GHK-Cu. Open a product page to see size, lot documentation, and crypto checkout, or browse the full research catalog.
Compare research compounds
Other peptide comparisons researchers run before sourcing.
Each Titan comparison breaks down the structural differences, research format, and documentation a buyer should confirm — lot-matched COA, HPLC purity target, and a clear research-use boundary. Pick the pair you're evaluating.
GLP-1 / metabolic research
Growth-hormone secretagogue research
Recovery & repair research
Neuropeptide & nasal-format research