Cosmetic · 3 vendors stocking
Copper peptide, GHK-copper, glycyl-L-histidyl-L-lysine
Every point is published and checkable — how the value score is built ›
| Vendor | Listing | Size | Vial price | Per milligram, after code | Value | |
|---|---|---|---|---|---|---|
| ZestyRat Best buy | GHK-cu 50mg | 50mg | $34.99 | $0.63 |
8.8 | View › |
| Ascension | GHK-CU (100MG) 3mL | 100MG | $65.00 | $0.65 | 7.3 | View › |
| Dynamic | GHK-CU Peptide | 100mg | $69.99 | $0.70 | 7.1 | View › |
Every row read from the vendor's live storefront on August 26, 2026. Ordered by value score, not by sticker price. Vials only — capsules, sprays and serums are excluded. Method ›
GHK-Cu is a copper-binding tripeptide, the most studied compound in the cosmetic and dermal-model literature and the anchor ingredient of the GLOW and KLOW blends. It is sold in far larger milligram amounts than any injectable peptide here.
Deeper background, sourcing and quality notes live on our sister site: Peptides Uncaged ›
Always-on partner code, re-tested at a live checkout. It stacks on the prices above, so a ZestyRat row within 10% of the leader is usually the cheaper order. Every other working code is on the Deal Board.
Questions
The cheapest GHK-Cu vial across the three storefronts we index is Ascension Peptides at $65.00 for the 100MG vial — $0.65 per milligram Prices were read from the vendors' live catalogues on August 26, 2026.
Ascension Peptides, at $0.65 per milligram. That is 7% below the next-cheapest vendor on the board. The deepest premium catalog of the four. A free researcher account is required at checkout — about a minute, one time.
Across the vendors we index: 50mg, 100mg, 100MG. Larger vials are almost always cheaper per milligram, which is why the table above is sorted on that column rather than on sticker price.
The per-milligram number on GHK-Cu looks dramatically cheaper than every other compound on this board, and that is real but not comparable — it is sold in 50mg and 100mg vials rather than 5mg and 10mg. Compare GHK-Cu to GHK-Cu, never across compounds.
No. GHK-Cu is sold by every vendor listed here for laboratory research use only. Nothing on this page is medical advice or a recommendation to use any compound.
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