Ordered Friday 3 PM, delivered Tuesday morning in Utrecht. Neatly packed and the COA simply arrived by email.
Sven K.
Verified purchase
GHK-Cu
Copper peptide, the best-researched peptide for collagen and skin repair.
4.9 · 211 reviews≥ 99.6% HPLCLab-verifiedBestsellerCosmetic researchResearch only
Buy GHK-Cu, research-grade copper peptide, ≥99% HPLC, shipped same day from the Netherlands. The naturally occurring tripeptide (glycyl-histidyl-lysine + copper) that has been studied for decades around collagen, skin repair and wound healing. Not a finished serum, strictly for laboratory research.
€ 29,95
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Bacteriostatic water
Needed to reconstitute lyophilised vials.
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1
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Ships from NL · 1–2 day EU delivery
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GHK-Cu is a copper peptide: a small, naturally occurring tripeptide (the amino acids glycine, histidine and lysine) that holds a copper ion. It is one of the best-researched peptides in skin and cosmetic science, with decades of studies around collagen, elastin and tissue repair. At GradePurity you buy it as a research-grade vial: ≥99% HPLC purity and same-day shipping from the Netherlands, not as a finished serum or cream, but as a pure research material.
What does GHK-Cu do?
GHK-Cu is best known in research around the skin. It is a copper peptide that occurs naturally in the body and declines over the years, which is why it draws attention in research on ageing. It is thought to play a role in the production of collagen and elastin, in wound healing and in tissue repair. That makes it one of the most studied peptides in cosmetic science. At GradePurity you buy it as a research-grade material, not for use in humans.
How does GHK-Cu work?
The key to GHK-Cu is the copper. The peptide binds a copper ion and so acts as a kind of carrier that brings copper to the cells, copper that is needed for enzymes around connective tissue and repair. In research it is thought that GHK-Cu activates the fibroblasts (the cells that make collagen and elastin) and gives off signals related to tissue repair. Most of what we know comes from cell and skin research.
What is a copper peptide?
Unlike some "peptides" that are really small molecules, GHK-Cu is a true tripeptide: three amino acids (glycyl-histidyl-lysine) coupled to a copper ion. That copper component gives a dissolved GHK-Cu vial its characteristic blue-purple colour, a normal feature of the copper complex, not a contamination. Copper peptides like GHK-Cu form their own family within peptide research, with the skin as the main area of study.
GHK-Cu vs AHK-Cu, skin and hair
GHK-Cu and AHK-Cu are both copper peptides, but with a different emphasis in research. GHK-Cu (with glycine at the front) is studied mainly around the skin: collagen, elastin and repair. AHK-Cu (with alanine at the front) is instead linked to the hair follicle. They are sometimes used alongside each other in research, the skin side and the hair side of copper peptides. If you want to look at the hair variant, you will find AHK-Cu separately in our cosmetic line; GHK-Cu is the skin and collagen side of the same story.
Research-grade vial or finished serum?
You come across GHK-Cu in two ways: as a ready-made serum or cream on the skincare shelf, and as a pure research-grade vial. We deliberately supply the vial. A finished serum contains a low concentration of GHK-Cu plus fragrance, preservatives and other ingredients; our vial is the pure, freeze-dried peptide that lets you set the concentration yourself in the lab. Researchers prefer to work from that pure starting point rather than from a finished cosmetic product.
Side effects and safety
In research, GHK-Cu is known for a mild profile; it is, after all, a peptide that occurs naturally in the body. In topical and cellular research, few and mostly mild reactions are reported. What happens exactly with prolonged or high-dose human use is not firmly established outside of studies.
Purity and lab testing
With a copper complex like GHK-Cu, purity matters all the more, because the ratio between peptide and copper has to be right. That is why we test every batch by HPLC for ≥99% purity and identity, and ship it freeze-dried so it arrives stable. So you know exactly what you are holding, the exact specifications (purity, molecular weight, CAS) are in the table at the bottom of this page.
Frequently asked questions
What our customers say.
Verified buyers across the Netherlands
★★★★★4.9 / 5Verified
BPC-157
Finally a supplier that just shows the HPLC + MS figures. Purity was exactly as promised.
Lotte v.d. B.
Verified purchase
Fast parcel out of the Netherlands. Emailed a question, got a reply within a few hours. Top service.
Paul M.
Verified purchase
Next business day in Rotterdam. Well and discreetly packed, will definitely order again.
Marco R.
Verified purchase
Ordered around 3 PM, delivered Wednesday morning. Unbranded envelope, my courier had no idea what was inside.
Niels J.
Verified purchase
Within 24 hours from NL stock. COA with MS identity confirmation — hard to find anywhere else.
Jonas W.
Verified purchase
Delivery spot-on, COA detailed. Would appreciate a more extensive FAQ per peptide on the site.
Eva R.
Verified purchase
Ordered Tuesday before 4 PM, at my door Wednesday in Breda. Payment went flawlessly.
Bram H.
Verified purchase
Genuinely from NL stock, so no customs hassle. Vial well freeze-dried, everything tightly packed.
Femke S.
Verified purchase
Purity on the HPLC comfortably above 99%. Delivery a day later than hoped, nothing else to fault.
Thijs M.
Verified purchase
Ordered Friday 3 PM, delivered Tuesday morning in Utrecht. Neatly packed and the COA simply arrived by email.
Sven K.
Verified purchase
Finally a supplier that just shows the HPLC + MS figures. Purity was exactly as promised.
Lotte v.d. B.
Verified purchase
Fast parcel out of the Netherlands. Emailed a question, got a reply within a few hours. Top service.
Paul M.
Verified purchase
Next business day in Rotterdam. Well and discreetly packed, will definitely order again.
Marco R.
Verified purchase
Ordered around 3 PM, delivered Wednesday morning. Unbranded envelope, my courier had no idea what was inside.
Niels J.
Verified purchase
Within 24 hours from NL stock. COA with MS identity confirmation — hard to find anywhere else.
Jonas W.
Verified purchase
Delivery spot-on, COA detailed. Would appreciate a more extensive FAQ per peptide on the site.
Eva R.
Verified purchase
Ordered Tuesday before 4 PM, at my door Wednesday in Breda. Payment went flawlessly.
Bram H.
Verified purchase
Genuinely from NL stock, so no customs hassle. Vial well freeze-dried, everything tightly packed.
Femke S.
Verified purchase
Purity on the HPLC comfortably above 99%. Delivery a day later than hoped, nothing else to fault.
Thijs M.
Verified purchase
The BPC + TB stack comes as two separate vials, each with its own COA. Not pre-mixed — exactly what I wanted.
Tom B.
Verified purchase
The COA was clear and readable. Delivered the next business day in The Hague. Helpful support by email.
Charlotte F.
Verified purchase
Arrived in a plain, neutral envelope. My neighbour who took it in literally had no clue what was inside. Privacy = 10.
Anouk d. V.
Verified purchase
Purity per COA 99.3%. Vial nicely freeze-dried, no yellow discolouration. Shipping from NL trouble-free.
Lukas K.
Verified purchase
Emailed a question on Saturday, Monday morning I got a reply from a real person. No cookie-cutter template. Real service.
Sara P.
Verified purchase
Shipped to Tilburg in one business day. Payment trouble-free. Identity neatly confirmed by MS on the COA.
Daniel S.
Verified purchase
Second order. The first was problem-free, so no reason to look elsewhere. COA again with HPLC + MS figures.
Iris K.
Verified purchase
Messaged a question about storage, got a clear answer. Nice that there is simply someone reachable.
Joris V.
Verified purchase
Completely neutral packaging, nothing visible on the outside. Delivered next day in Nijmegen. Exactly what I was after.
Sanne D.
Verified purchase
Shipped quickly from the Netherlands, and the COA confirmed the purity nicely. Third time ordering here without complaints.
Ruben T.
Verified purchase
The BPC + TB stack comes as two separate vials, each with its own COA. Not pre-mixed — exactly what I wanted.
Tom B.
Verified purchase
The COA was clear and readable. Delivered the next business day in The Hague. Helpful support by email.
Charlotte F.
Verified purchase
Arrived in a plain, neutral envelope. My neighbour who took it in literally had no clue what was inside. Privacy = 10.
Anouk d. V.
Verified purchase
Purity per COA 99.3%. Vial nicely freeze-dried, no yellow discolouration. Shipping from NL trouble-free.
Lukas K.
Verified purchase
Emailed a question on Saturday, Monday morning I got a reply from a real person. No cookie-cutter template. Real service.
Sara P.
Verified purchase
Shipped to Tilburg in one business day. Payment trouble-free. Identity neatly confirmed by MS on the COA.
Daniel S.
Verified purchase
Second order. The first was problem-free, so no reason to look elsewhere. COA again with HPLC + MS figures.
Iris K.
Verified purchase
Messaged a question about storage, got a clear answer. Nice that there is simply someone reachable.
Joris V.
Verified purchase
Completely neutral packaging, nothing visible on the outside. Delivered next day in Nijmegen. Exactly what I was after.
Sanne D.
Verified purchase
Shipped quickly from the Netherlands, and the COA confirmed the purity nicely. Third time ordering here without complaints.
Ruben T.
Verified purchase
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