Not approved (research only)Cosmetic tripeptideHair / skin research
Tripeptide-3 (AHK)
Tripeptide-3 (AHK) is the alanyl-histidyl-lysine tripeptide used in cosmetic formulations, often as its copper complex.
What is Tripeptide-3?
Tripeptide-3 (AHK) is the alanyl-histidyl-lysine tripeptide used in cosmetic formulations, often as its copper complex. Tripeptide-3 (AHK) is not approved by the FDA for any use; products sold under this name are labeled for research use only, not for human consumption.
Key takeaways
- Tripeptide-3 (AHK) is not approved by the FDA for any use; products sold under this name are labeled for research use only, not for human consumption.
- Tripeptide-3 has little indexed research under its own name; we list only papers whose titles name it.
- No vendor in our directory listed Tripeptide-3 when we checked.
Regulatory & access status
Tripeptide-3 (AHK) is not approved by the FDA for any use; products sold under this name are labeled for research use only, not for human consumption.
Sellers that market unapproved peptides for human use can receive FDA warning letters; our vendor directory links any letter we found on fda.gov.
How much research exists on Tripeptide-3 (AHK)?
Tripeptide-3 (AHK) has no reliable PubMed search term of its own (the name is shared with unrelated terms), so we list only papers whose titles name it. Search PubMed.
Most relevant recent papers
- Vitamin C-linker-conjugated tripeptide AHK stimulates BMP-2-induced osteogenic differentiation of mouse myoblast C2C12 cells. — Differentiation, 2018
- Asp-Ala-His-Lys (DAHK) inhibits copper-induced oxidative DNA double strand breaks and telomere shortening. — Biochem Biophys Res Commun, 2001
- An analog of the human albumin N-terminus (Asp-Ala-His-Lys) prevents formation of copper-induced reactive oxygen species. — Biochem Biophys Res Commun, 2001
- X-ray and solution structures of Cu(II) GHK and Cu(II) DAHK complexes: influence on their redox properties. — Chemistry, 2011
What the evidence does not show
- Paper counts measure research attention, not whether Tripeptide-3 works or is safe.
- No clinical trial in humans is tagged in PubMed under this name.
- No FDA review of any "research use only" product's identity, purity, sterility or dose.
Research suppliers that list Tripeptide-3
None of the vendors in our directory listed Tripeptide-3 in their public catalog when we checked. The vendor directory records what each vendor publishes about testing.
Tripeptide-3 reconstitution math
Lab arithmetic only, not dosing guidance: use the peptide calculator to turn a vial size and diluent volume into a concentration.
Tripeptide-3 FAQ
Is Tripeptide-3 FDA-approved?
Tripeptide-3 (AHK) is not approved by the FDA for any use; products sold under this name are labeled for research use only, not for human consumption.
Is Tripeptide-3 safe?
There are no published human safety trials of Tripeptide-3 that we could find. Products sold as "research use only" have no FDA review of purity, sterility or dose, and are not for human use.
How much research is there on Tripeptide-3?
Tripeptide-3 has little indexed research under its own name; we list only papers whose titles name it.
Who sells Tripeptide-3?
None of the vendors in our directory listed it when we checked.
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