Peptide ChooserGHK-Cu
Not approvedResearch-useChecked 31 Oct 2026
Not approved: its nomination for pharmacy compounding was withdrawn. FDA source, 19 Oct 2026. Our hair growth and skin pages list it. The lowest price at the 10 shops shown below is $0.028/mg (RUO), checked 27 Oct 2026.
Evidence by goal
What each goal page that lists it says, word for word, with its sources. The evidence rating comes from a goal page's checked options table; a goal without one shows "Not rated".
| Goal | Evidence in people | What the goal page says |
|---|---|---|
| Hair growthGHK-Cu copper peptide serum | Limited: lab and follicle-culture studies | A cosmetic serum for the scalp. Small lab and follicle studies; no large trials in people.23 |
| Hair growthInjectable peptides sold for hair | None found in people | Vials from research-use shops, meant to be injected. No human evidence for hair. |
| SkinGHK-Cu copper peptide | Not rated | A serum or cream. Small studies suggest firmer-looking skin; no large trials. |
Where it is sold
The 10 shops in the price window on our goal pages, each with its cheapest listing by price per mg, most checks first. Research-use sellers; we do not link to them. Prices checked 31 Oct 2026.
| Shop | Size | Price | Per mg | Checks |
|---|---|---|---|---|
| Iron Aminos | 1000 mg | $254.99 | $0.26/mg | 4 of 5 checksLab reports: yesNo FDA letter: yesCompany found: yesLegal pages: noFresh prices: yes |
| IDUN Peptides | 1000 mg | $244.99 | $0.24/mg | 4 of 5 checksLab reports: yesNo FDA letter: yesCompany found: yesLegal pages: noFresh prices: yes |
| Umbrella Labs | 400 mg | $79.99 | $0.20/mg | 3 of 5 checksLab reports: yesNo FDA letter: yesCompany found: noLegal pages: noFresh prices: yes |
| RUO | 1000 mg | $28.00 | $0.03/mg | 3 of 5 checksLab reports: yesNo FDA letter: yesCompany found: noLegal pages: noFresh prices: yes |
| Verified Peptides | 1000 mg | $55.00 | $0.06/mg | 3 of 5 checksLab reports: yesNo FDA letter: yesCompany found: noLegal pages: noFresh prices: yes |
| Southern Aminos | 100 mg | $27.50 | $0.28/mg | 3 of 5 checksLab reports: yesNo FDA letter: yesCompany found: noLegal pages: noFresh prices: yes |
| Rocky Mountain Compounds | 1000 mg | $145.00 | $0.14/mg | 3 of 5 checksLab reports: yesNo FDA letter: yesCompany found: noLegal pages: noFresh prices: yes |
| Lost Coast Aminos | 100 mg | $20.00 | $0.20/mg | 3 of 5 checksLab reports: yesNo FDA letter: yesCompany found: noLegal pages: noFresh prices: yes |
| Renova Peptides | 1000 mg | $137.50 | $0.14/mg | 3 of 5 checksLab reports: yesNo FDA letter: yesCompany found: noLegal pages: noFresh prices: yes |
| Chimera Peptides | 1000 mg | $104.00 | $0.10/mg | 2 of 5 checksLab reports: noNo FDA letter: yesCompany found: noLegal pages: noFresh prices: yes |
Price per mg is the price divided by the stated amount. Checks are facts we hold about the seller, not a safety or quality grade. How we rate
FDA warning letters
Our letters list is by company, not by substance. The letters page lists all 172, each with its subject and a link to fda.gov; filter it by a company name.
Compared with: BPC-157 vs GHK-Cu, GHK-Cu vs TB-500
Sources
- FDA, status of GHK-Cu, 19 Oct 2026: https://www.fda.gov/drugs/human-drug-compounding/certain-bulk-drug-substances-use-compounding-may-present-significant-safety-risks
- Pyo HK et al., The effect of tripeptide-copper complex on human hair growth in vitro, Archives of Pharmacal Research 30(7), 2007, PubMed 17703734, checked 2 Nov 2026. The copper peptide tested was AHK-Cu, a close relative of GHK-Cu, on human hair follicles in a dish: https://pubmed.ncbi.nlm.nih.gov/17703734/
- Divi, Scalp Serum product page, price checked 30 Oct 2026: https://diviofficial.com/products/scalp-serum