What Is AOD-9604? The HGH Fragment Explained
AOD-9604 is a modified synthetic fragment of the C-terminal region of human growth hormone. Sold for laboratory research use only.
AOD-9604 is a synthetic peptide: a 16-residue analog of the hGH C-terminus (residues 177-191 with an N-terminal tyrosine). It is sold as a research-use-only compound.
What makes AOD-9604 distinct
Unlike full-length human growth hormone (191 amino acids), AOD-9604 is a short 16-residue sequence covering only the hormone's C-terminal end plus one added tyrosine. Its sequence sits very close to HGH Fragment 176-191, so the exact sequence on the certificate is what tells the two apart.
Research-use status
- Published literature is mostly animal and cell work
- Comparison with the HGH 176-191 fragment and full-length growth hormone
- Sold for laboratory research use only; this page does not summarise effects or uses
COA and verification considerations
Because research compounds are unregulated, the certificate of analysis is the single most important thing to check. For AOD-9604, a trustworthy COA names the testing laboratory, reports HPLC purity (typically 99% or higher), confirms identity by mass spectrometry, and, for injectable-format material, includes endotoxin and sterility results. A batch or lot number that matches the product, a recent test date, and a working verification portal are strong positive signals.
What to check before buying
- Is a named third-party lab shown, not just a claim of testing?
- Does the COA lot number match the batch you are buying, with a recent date?
- Are purity and identity both reported, ideally with endotoxin and sterility?
- How does the vendor rank on our published, testing-led formula?
Frequently Asked Questions
Is AOD-9604 the same as HGH Fragment 176-191?
They are closely related. AOD-9604 is a 16-residue analog of the hGH C-terminus (residues 177-191 with an N-terminal tyrosine), so its sequence differs from Fragment 176-191 at the first position. Vendors sometimes list both; the COA should state exactly which sequence was tested.
What should an AOD-9604 COA include?
A named third-party lab, HPLC purity (typically 99%+), mass-spec identity confirmation, and ideally endotoxin and sterility results for any injectable-format research material.
Does affiliate status change an AOD-9604 vendor's rank?
No. Rankings are set purely by our published methodology. Affiliate relationships never move a vendor up or down.