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Metabolic

Peptides for Fat Loss & Weight Management

7 peptidesUpdated July 2026
The most clinically validated peptides for weight management are the GLP-1-based medications Semaglutide and Tirzepatide, both FDA-approved for chronic weight management. Newer agents like Retatrutide, Cagrilintide and Survodutide are still investigational, while AOD-9604 and MOTS-c appear in earlier metabolic research.

This is the peptide area with the strongest human evidence — but that evidence is concentrated in the approved GLP-1 drugs, which are prescription medications with real side-effect profiles and belong under medical supervision. The investigational and research compounds below are studied for related mechanisms, not proven weight-loss treatments.

Peptides researched for this goal

Semaglutide Metabolic

A GLP-1 receptor agonist approved for type 2 diabetes and weight management.

Tirzepatide Metabolic

A dual GIP/GLP-1 receptor agonist approved for diabetes and weight management.

Retatrutide Metabolic

An investigational triple GIP/GLP-1/glucagon agonist studied for weight loss.

Cagrilintide Metabolic

A long-acting amylin analog studied for appetite and weight, often with semaglutide.

Survodutide Metabolic

An investigational GLP-1/glucagon dual agonist studied for weight and liver health.

AOD-9604 Metabolic

A growth-hormone fragment studied for fat metabolism.

MOTS-c Metabolic

A mitochondrial-derived peptide studied for metabolism and exercise.

Frequently asked questions

Semaglutide and Tirzepatide have the strongest evidence and are FDA-approved for weight management, but "best" depends on the individual and is a decision for a clinician. Selpho does not prescribe or provide dosing.

The approved GLP-1 medications have known side effects (commonly gastrointestinal) and require medical supervision. Investigational compounds are not established as safe or effective for weight loss.

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This page is for educational purposes only and is not medical advice, a diagnosis, or a recommendation to use any compound. It contains no dosing or purchase information. Always consult a licensed healthcare professional before considering any peptide.