AOD-9604 vs Retatrutide
Which should you choose? Here's what you need to know.
The short answer
Retatrutide is the most effective weight loss peptide in trials. AOD-9604 is a GH fragment studied for fat metabolism that never proved effective in human trials — dramatically different evidence levels.
On 9 Oct 2026 Peptide Compare tracked 53 vendors selling AOD-9604, cheapest in stock $5.00 per mg at LA Peptides, and 31 selling Retatrutide, cheapest $2.20 per mg at Modern Research.
AOD-9604
Weight Loss (GLP-1)AOD-9604 is a synthetic fragment of growth hormone studied for fat metabolism. Despite completing six human trials, the largest Phase IIb trial did not reach statistical significance and development was terminated in 2007.
Choose AOD-9604 if:
You want a peptide focused on fat metabolism without appetite suppression, though evidence of effectiveness is weak.
Retatrutide
Weight Loss (GLP-1)Retatrutide is a triple receptor agonist showing 28.7% mean weight loss in Phase 3 trials — the highest ever recorded for an obesity drug. It hits GLP-1, GIP, and glucagon pathways simultaneously.
Choose Retatrutide if:
You want maximum weight loss backed by strong clinical trial data.
Price & availability
Once you've decided which peptide fits your needs, here's how they compare on price and vendor options. Prices verified Oct 9, 2026.
AOD-9604
Retatrutide
$25.00
Starting from
$25.99
$10.31
Avg. price per mg
$10.03
53
Vendors selling it
31
46 options
In stock now
98 options
9.1/10
Top trust score
9.0/10
Ready to buy?
Our top-rated vendor for each, based on trust scores, purity testing, and price.
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Where does this data come from?
We re-check vendor prices continuously and score vendors on Finnrick blind-test results — samples bought anonymously and sent to a lab, not vendor claims. No vendor can pay to rank higher. See our full methodology.