Home›Research›Compare›Liraglutide vs Retatrutide
Peptide ComparisonLiraglutide vs Retatrutide
Both are Metabolic peptides.
Liraglutide
Victoza
Half-life: 13 hours
52 providers listed
Retatrutide
GLP-3
Half-life: ~6 days
96 providers listed
Liraglutide is FDA-approved, while Retatrutide is investigational — the clearest structural difference between them.
Liraglutide
Half-life
13 hours
Retatrutide
Half-life
~6 days
| Your goal | Better option |
|---|---|
| Further along in FDA review | Liraglutide |
| Less frequent dosing (longer half-life) | Retatrutide |
| More provider options (52 vs 96) | Retatrutide |
Research summary only — not medical advice. Consult a qualified provider before making any decisions.
Liraglutide
Retatrutide
Liraglutide
Comparative Effects of Individual Glucagon-Like Peptide-1 Receptor Agonist-Based Medications on Direct Measur…
Semaglutide vs liraglutide for weight loss in adults with overweight or obesity
A randomized, controlled trial of 3.0 mg of liraglutide in weight management
Effects of the GLP-1 receptor agonist liraglutide on bupivacaine-induced sciatic nerve block in a rat model.
+4 more
Retatrutide
Benefits and Harms of Pharmacologic Treatments in Adults With Overweight or Obesity: A Living Systematic Revi…
Retatrutide And Lipid And Metabolite Profiles In Participants With Obesity With Or Without Type 2 Diabetes.
Design of the TRIUMPH phase 3 clinical trial programme for retatrutide in obesity and cardiometabolic disease
Triple-hormone-receptor agonist retatrutide for obesity — a phase 2 trial
+6 more
About Liraglutide
GLP-1 receptor agonist; slows gastric emptying, increases satiety, reduces glucagon secretion
About Retatrutide
Triple GIP/GLP-1/glucagon receptor agonist; targets three pathways for synergistic fat reduction
Information below reflects published research data only — not medical advice. Consult a qualified provider before use.
Liraglutide
Risk of thyroid C-cell tumors (dose- and duration-dependent in rodents; human relevance undetermined).
Source: FDA label
Under clinical review
Being verified by our medical team before we display monitoring guidance for this peptide.
Retatrutide
Class-based (investigational)
Liraglutide
Not enough vendor pricing yet.
Retatrutide
Where to source these peptides
Liraglutide
52 listed
Browse directory →
Providers offeringRetatrutide
96 listed
Browse directory →
PeptideBase lists providers for educational research purposes only. Always consult a qualified healthcare professional before obtaining or using any peptide.
More Metabolic Comparisons
Browse all peptides →Educational research tools — not medical advice.
Cite this page
Data last updated August 26, 2026
Free to reference and republish with attribution to PeptideBase. Choose a format:
PeptideBase. (2026). Liraglutide vs Retatrutide — Per-mg Price Comparison. Retrieved September 11, 2026, from https://peptidebase.io/peptides/compare/liraglutide/retatrutide