The Peptide Directory

Not approved (research only)Angiotensin IV analogCognitive research

Dihexa

Dihexa is a small synthetic peptide-like compound derived from angiotensin IV, studied in animal models of memory; it has no approved human use.

Last reviewed by The Peptide Directory Editorial Team

What is Dihexa?

Dihexa is a small synthetic peptide-like compound derived from angiotensin IV, studied in animal models of memory; it has no approved human use. Dihexa 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

  1. Dihexa is not approved by the FDA for any use; products sold under this name are labeled for research use only, not for human consumption.
  2. PubMed indexes 18 papers on Dihexa (0 tagged as clinical trials) as of October 19, 2026.
  3. 8 vendors in our directory listed Dihexa in their public catalog on October 19, 2026.

Structure

2D chemical structure of Dihexa (C27H44N4O5), as depicted by PubChem
Structure: PubChem CID 129010512 (C27H44N4O5, 504.7 g/mol). 2D depiction from NCBI PubChem, retrieved October 19, 2026.

Regulatory & access status

Dihexa 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 Dihexa?

PubMed indexes 18 papers mentioning Dihexa in the title or abstract, 6 of them from the last five years and 0 tagged as clinical trials (search run October 19, 2026; repeat the search).

Most relevant recent papers

What the evidence does not show

  • Paper counts measure research attention, not whether Dihexa 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 Dihexa

8 vendors in our directory listed a product matching Dihexa in their public catalog on October 19, 2026. Listed alphabetically; a listing is not an endorsement. Research use only.

Prices per mg, where we could verify them, are on our price comparison.

Dihexa reconstitution math

Lab arithmetic only, not dosing guidance: use the peptide calculator to turn a vial size and diluent volume into a concentration.

Dihexa FAQ

Is Dihexa FDA-approved?

Dihexa 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 Dihexa safe?

There are no published human safety trials of Dihexa 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 Dihexa?

PubMed indexes 18 papers on Dihexa (0 tagged as clinical trials) as of October 19, 2026.

Who sells Dihexa?

Evolve BioPep, Extreme Peptides, Liberty Peptides, Modern Aminos, San Diego Peptides, Science.bio and 2 more listed it on their public catalogs when we checked; a listing is not an endorsement.

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