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HGH Fragment 176-191 vs AOD-9604
HGH Fragment 176-191 and AOD-9604 are both metabolic peptides, which is why they get recommended interchangeably — but they are different compounds with different origins. The table below sets out the differences. We give no dosing guidance.
Side by side, in plain English — what each one is, where they overlap and where they genuinely differ.
HGH Fragment 176-191Metabolic
AOD-9604MetabolicAt a glance
| HGH Fragment 176-191 | AOD-9604 | |
|---|---|---|
| Category | Metabolic | Metabolic |
| Typical route | SubQ | SubQ |
| Shelf life once mixed | ~30 days | ~30 days |
The differences that actually matter
Both are classed as Metabolic peptides, so they get compared constantly and are often researched for overlapping reasons.
What HGH Fragment 176-191 is
HGH Fragment 176-191 is a modified peptide segment derived from the C-terminus of the human growth hormone (HGH) molecule, specifically residues 176 to 191. This peptide is for research use only and is not intended for human consumption or therapeutic application.
What AOD-9604 is
AOD-9604 is a synthetic peptide derived from the C-terminal fragment of human growth hormone (hGH), specifically corresponding to amino acids 177-191. In research settings, AOD-9604 is typically administered subcutaneously, with common experimental doses ranging from 300 to 500 micrograms. It is important for researchers to ensure peptide purity, proper storage, and sterile preparation, as AOD-9604 is strictly for research purposes and is not approved for human therapeutic use or consumption.
How to compare them for yourself
Anecdotes online are noisy because nobody is measuring the same thing. The only comparison that means anything is your own: log each entry with a timestamp, keep the vial ledger honest so you know what you actually got through, pick two or three metrics before you start, and look at the trend after several weeks rather than day to day.
Peptide Wizard does that part for you — HGH Fragment 176-191 and AOD-9604 are both in the built-in reference library with a 3D vial, and your history, vial ledger and cost per entry stay private on your device.
FAQ
What is the difference between HGH Fragment 176-191 and AOD-9604?
Both are classed as Metabolic peptides, so they get compared constantly and are often researched for overlapping reasons.
Can you log HGH Fragment 176-191 and AOD-9604 in the same period?
Plenty of people record more than one peptide at a time. Peptide Wizard keeps a separate vial ledger and entry history for each, so you can see exactly what overlapped and when — it does not recommend combinations or doses.
Which is better, HGH Fragment 176-191 or AOD-9604?
There isn't a universal answer — reported responses vary a lot between individuals, which is why your own log is more informative than anyone else's anecdote. Track one variable at a time and compare your own metrics over several weeks.
Is this medical advice?
No. This page is educational reference material only. It contains no dosing guidance. Speak to a qualified healthcare professional before making any decisions.
Handling questions
Whichever you pick, mixing and storage work the same way. Search the guides and land straight on the answer.
Can I shake it? · It went cloudy · Should I filter? · Fridge or freezer?
See all peptide comparisons →
Educational reference only. This page contains no dosing guidance and is not medical advice.