Legal status · United States
Is AHK-Cu with GHK-Cu legal in the United States?
Written by Aaron CuhaReviewed Sep 2026
Direct answer
AHK-Cu with GHK-Cu can be sold in the United States as a supplement or cosmetic ingredient, classified as "Permitted in cosmetics". That is not drug approval: FDA has not evaluated any health claim, and injectable or "research use only" versions fall outside supplement rules, so that label does not make human use lawful. On the evidence, 2 human studies are cited on its profile.
AHK-Cu with GHK-Cu in the United States at a glance
| Classification | Permitted in cosmetics |
|---|---|
| Note | Sold as cosmetics; appearance claims are permitted, structure or function claims are not. |
| FDA approval status | Cosmetic ingredients. Not approved drugs, and a hair regrowth or structural skin claim would make the product a drug. |
| Human studies cited | 2 of 4 citations on the profile |
| Reviewed | Sep 2026 |
Classification and note come from the AHK-Cu with GHK-Cu profile, checked against U.S. Food and Drug Administration (FDA) listings at the reviewed date.
What this means
- 01
AHK-Cu with GHK-Cu can be sold in the United States as a supplement, food or cosmetic ingredient under the classification above, without drug approval.
- 02
Supplement status means FDA has not evaluated any health claim; manufacturers are responsible for safety and labeling, and quality varies by product.
- 03
Injectable or "research use only" versions are not supplements. That label does not make human use lawful, and injectables fall under medicines rules.
What AHK-Cu with GHK-Cu is
Two copper tripeptides in one serum, sold for hair and skin. PubMed returns no publication for AHK-Cu under that name, so half the product has no literature at all, and the other half's human evidence is a cream that failed its blinded endpoints in 13 patients. Serum concentrations are not consistent between brands, so no per-application arithmetic is possible.
AHK-Cu is alanyl-histidyl-lysine bound to copper, a sibling of the better known glycyl-histidyl-lysine complex. It appears in hair serums alongside GHK-Cu on the strength of a claim that it targets follicles while the other targets skin.
Mechanism: Both are copper-bound tripeptides that deliver copper to tissue and are claimed to signal fibroblasts and follicular cells. GHK-Cu has published gene expression and cell culture work behind those claims.
Regulatory history: Cosmetic ingredients. Not approved drugs, and a hair regrowth or structural skin claim would make the product a drug.
How FDA treats this kind of product
Approves prescription drugs by indication and polices unapproved products, including peptides sold online. Compounding pharmacies may prepare some compounds under a prescription when the FDA places them on a permitted bulk-substances category.
The classification above is the The Longevity Archive reading of U.S. Food and Drug Administration listings for AHK-Cu with GHK-Cu at the reviewed date, not a legal opinion. Rules change, and importing, prescribing and possessing a compound can each be treated differently. Check the regulator directly before acting on anything here.
AHK-Cu with GHK-Cu in other countries
Frequently asked questions
Is AHK-Cu with GHK-Cu legal in the United States?
AHK-Cu with GHK-Cu can be sold in the United States as a supplement or cosmetic ingredient, classified as "Permitted in cosmetics". That is not drug approval: FDA has not evaluated any health claim, and injectable or "research use only" versions fall outside supplement rules, so that label does not make human use lawful. On the evidence, 2 human studies are cited on its profile. Note: Sold as cosmetics; appearance claims are permitted, structure or function claims are not.
Can I buy AHK-Cu with GHK-Cu in the United States?
Yes, in supplement or cosmetic form. In the United States AHK-Cu with GHK-Cu is classified as "Permitted in cosmetics", so oral, topical or cosmetic products can be sold under supplement rules. Injectable versions and products labeled "research use only" are not supplements and are not approved for human use. Note: Sold as cosmetics; appearance claims are permitted, structure or function claims are not.
Is AHK-Cu with GHK-Cu FDA approved?
No. FDA status: Cosmetic ingredients. Not approved drugs, and a hair regrowth or structural skin claim would make the product a drug.. Current US classification: "Permitted in cosmetics". On the evidence, 2 human studies are cited on its profile.
Related compounds in the United States
Full research profile
Mechanism, cited studies, FDA status and the full legal summary for AHK-Cu with GHK-Cu live on its compound profile.
AHK-Cu with GHK-Cu profileThis page is general information about the regulatory status of AHK-Cu with GHK-Cu in the United States, current as of Sep 2026. It is not legal advice, and classifications change; check U.S. Food and Drug Administration directly or consult a lawyer for a specific situation. Educational use only. This database summarizes published research. It is not medical advice and contains no dosing protocols or recommendations for personal use. The Longevity Archive has no vendor relationships and does not recommend where to buy anything.