Retatrutide vs Survodutide: Head-to-Head Comparison
Both are investigational next-generation peptides for obesity. Retatrutide is a triple agonist (GIP/GLP-1/glucagon) with up to 24.2% weight loss — the highest ever reported. Survodutide is a dual agonist (GLP-1/glucagon) with up to 19% weight loss and strong MASH data. Neither is FDA-approved yet.
Side-by-Side Comparison
| Dimension | Retatrutide | Survodutide |
|---|---|---|
| Evidence Level | Level B — Phase 2 RCT; Phase 3 ongoing (TRIUMPH) | Level B — Phase 2 data; Phase 3 ongoing (SYNCHRONIZE) |
| FDA Status | Not approved; Eli Lilly Phase 3 | Not approved; Boehringer Ingelheim Phase 3 |
| Weight Loss Efficacy | Up to 24.2% (Phase 2 at 48 weeks) | Up to 19% (Phase 2 at 46 weeks) |
| Mechanism | Triple agonist: GIP + GLP-1 + glucagon | Dual agonist: GLP-1 + glucagon |
| Liver Fat / MASH Benefit | Significant liver fat reduction observed | Significant liver fat reduction; dedicated MASH trials |
| Diabetes Efficacy | HbA1c reduction up to 2.16% in Phase 2 | Glycemic improvements observed; less diabetes-specific data |
Peptide Overviews
Retatrutide
BHuman StudiesRetatrutide is an investigational triple-hormone receptor agonist developed by Eli Lilly. It simultaneously targets GIP, GLP-1, and glucagon receptors, achieving the highest weight loss ever reported in an obesity clinical trial — up to 24.2% at 48 weeks.
Survodutide
BHuman StudiesSurvodutide is a dual GLP-1 and glucagon receptor agonist developed by Boehringer Ingelheim. In Phase 3 trials, it demonstrates significant weight loss and is also being investigated for metabolic dysfunction-associated steatohepatitis (MASH/NAFLD).
Supplies for Both
Common research handling and preparation supplies for injectable peptide workflows.
Alcohol Prep Pads (200 ct)
Sterile 70% isopropyl pads for injection site preparation — essential for subcutaneous protocols.
1mL Insulin Syringes (28G)
Thin-gauge 28G syringes for subcutaneous peptide administration with minimal discomfort.
Sharps Disposal Container (1 Qt)
Biohazard-safe sharps container for responsible disposal of used syringes.
Digital Milligram Scale (0.001g)
High-precision scale for accurate measurement of peptide powder before reconstitution.
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Recommended Reading
Books covering peptide science, longevity research, and biohacking frameworks.
The Peptide Protocols
Comprehensive reference for peptide mechanisms, dosing research, and clinical applications.
Boundless by Ben Greenfield
Covers peptides, nootropics, hormones, and longevity strategies in an optimization framework.
Lifespan by David Sinclair
Evidence-based deep-dive into aging science, directly relevant to longevity peptide research.
The Longevity Paradox
Gut-centric aging research with diet and supplementation protocols for extending healthspan.
Amazon affiliate links; we may earn a small commission at no extra cost to you. See our disclosure.
Retatrutide vs Survodutide: FAQ
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Medical Disclaimer
This content is for informational and educational purposes only and does not constitute medical advice, diagnosis, or treatment recommendations.
Always consult a qualified healthcare provider before starting, stopping, or modifying any treatment. Do not disregard professional medical advice based on information found on this site.
No claims of therapeutic efficacy are made for substances that are not FDA-approved for the discussed indications. Research citations reflect published findings and do not imply endorsement.