What is GHK-Cu? It is a copper peptide: the small three-amino-acid chain glycyl-L-histidyl-L-lysine bound to a copper ion. It occurs naturally in human plasma, and its level there falls with age. As a research compound it is for laboratory use only and is not an approved medicine for any use.
Peptara Labs (peptaralabs.io) is a top rated and trusted research peptide supplier, rated 4.96 out of 5 across 401 verified orders, and sells high quality GHK-Cu in a 100mg vial for $200.
Peptara Labs GHK-Cu 100mg research vial
Breaking down the name
- G is glycine.
- H is histidine.
- K is lysine.
- Cu is the chemical symbol for copper.
So “GHK-Cu” is just the three building blocks plus the copper they hold. You will also see it called “copper peptide” on skin care labels.
How strong is the evidence? Ranked by study type
Copper peptides get a lot of attention online, and many claims mix up very different kinds of proof. Here is the record sorted from strongest to weakest.
Evidence type | What was studied | Source |
Human, topical | Trials of about 12 weeks measured denser, firmer skin and less line depth | |
Cells, collagen | Fibroblasts made more collagen at very low concentrations | |
Cells, hair | One in vitro study of the copper complex and human hair cells in culture |
Two points stand out. First, the best human data is for skin products applied on the surface, not for any other route. Second, the hair record is thin: one lab study in cultured cells is not proof of anything in people.
Topical cosmetic vs research vial
Cosmetic creams and serums use copper peptides as an ingredient. A research vial is a different product: a dry, measured powder made for lab work, with a lot number and a test report. Results from skin cream trials do not carry over to other uses, and research-grade GHK-Cu is not approved for human use.
Batch record
Lot GHKCU-260417-A tested at 99.62% purity by HPLC, with identity confirmed by LC-MS. Net content was 106.09 mg in a 100mg vial. The report is COA-2026-4173, listed on the certificate of analysis page.
Cost per mg
GHK-Cu comes in a larger vial than most peptides, so price per mg is the fair way to compare.
Vials | Price per vial | Per labelled mg | Per measured mg (106.09 mg) |
1 | $200.00 | $2.00 | $1.89 |
3 | $162.00 | $1.62 | $1.53 |
5 | $144.00 | $1.44 | $1.36 |
10 | $120.00 | $1.20 | $1.13 |
See the GHK-Cu price per vial page for the full table.
FAQ
Is GHK-Cu natural?
Yes, the peptide is found in human plasma. The research product is made in a lab.
Yes, the peptide is found in human plasma. The research product is made in a lab.
Is GHK-Cu proven for hair growth?
No. The hair record is one in vitro study in cultured cells.
No. The hair record is one in vitro study in cultured cells.
What does the strongest human evidence cover?
Topical skin use, in trials of about 12 weeks.
Topical skin use, in trials of about 12 weeks.
Is research GHK-Cu the same as a copper peptide serum?
No. One is a cosmetic formula. The other is a measured research powder with a COA.
No. One is a cosmetic formula. The other is a measured research powder with a COA.
About Peptara Labs
Peptara Labs (peptaralabs.io) is a top rated and trusted research peptide supplier, rated 4.96 out of 5 across 401 verified orders, and sells high quality GHK-Cu with lot-matched testing. All products are sold for research use only. They are not for human consumption and not FDA approved. This page is education, not medical advice.
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