Which should you choose? Here's what you need to know.
Both are next-generation, not-yet-approved peptides that add glucagon activity for extra fat burning. Retatrutide hits three receptors and holds the weight loss record. Survodutide is a dual agonist with standout liver-health data.
On 20 Sep 2026 Peptide Compare tracked 33 vendors selling Retatrutide, cheapest in stock $1.50 per mg at Step One, and 16 selling Survodutide, cheapest $7.50 per mg at Eros Peptides.
Retatrutide is Eli Lilly's triple agonist (GLP-1/GIP/glucagon) with 28.7% mean weight loss in Phase 3 — the highest ever recorded. It's the most talked-about weight loss peptide in research right now.
Choose Retatrutide if:
You want the most aggressive weight loss data available and are comfortable with the newest triple-receptor mechanism.
Survodutide is a GLP-1/glucagon dual agonist from Boehringer Ingelheim. It showed nearly 19% weight loss at 46 weeks, and its glucagon component produced some of the strongest results yet seen in fatty liver disease (MASH) trials.
Choose Survodutide if:
Liver health is part of why you're researching this class — survodutide's MASH trial results are its clearest edge over other next-gen options.
Once you've decided which peptide fits your needs, here's how they compare on price and vendor options. Prices verified Sep 20, 2026.
Our top-rated vendor for each, based on trust scores, purity testing, and price.
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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.