Retatrutide price comparison
Triple GIP / GLP-1 / glucagon receptor agonist. Prices from 9 vendors, all normalized to price per mg so a 5 mg and a 20 mg vial can be compared fairly.
What the research says about Retatrutide
Evidence map →Several randomized controlled trials in humans, often summarized by meta-analyses.
- 207
- Papers
- 10
- RCTs
- 33
- Reg. trials
Investigational: in late-stage clinical trials, not approved anywhere.
- Human clinical studies: 13
- Animal / lab only: 10
- Other (reviews, untagged): 184
- Meta-analyses / systematic reviews: 36
- Systematic reviewComparative effects of drugs for adults with overweight or obesity: systematic review and network meta-analysis — BMJ (Clinical research ed.), 2026
- Systematic reviewEfficacy and Safety of Glucagon-Like Peptide-1 Receptor Agonists for Weight Loss Among Adults Without Diabetes : A Systematic Review of Randomized Controlled Trials — Annals of internal medicine, 2025
- Systematic reviewEmerging pharmacotherapies for obesity: A systematic review — Pharmacological reviews, 2025
- Randomized trialEfficacy and safety of retatrutide, a GIP, GLP-1, and glucagon receptor agonist, in people with type 2 diabetes and inadequate glycaemic control with diet and exercise (TRANSCEND-T2D-1): a double-blind, randomised, phase 3 trial — Lancet (London, England), 2026
- Randomized trialEffects of retatrutide on body composition in people with type 2 diabetes: a substudy of a phase 2, double-blind, parallel-group, placebo-controlled, randomised trial — The lancet. Diabetes & endocrinology, 2025
- Randomized trialTriple hormone receptor agonist retatrutide for metabolic dysfunction-associated steatotic liver disease: a randomized phase 2a trial — Nature medicine, 2024
- A Master Protocol of Multiple Agents in Adults With Metabolic Dysfunction-Associated Steatotic Liver Disease (SYNERGY-Outcomes) — recruiting · phase3
- A Study to Measure Calorie Consumption and Usage in Participants With Obesity Using LY3437943 — completed · phase1
- The Effect of Retatrutide Once Weekly on Cardiovascular Outcomes and Kidney Outcomes in Adults Living With Obesity (TRIUMPH-Outcomes) — active not recruiting · phase3
- A Drug-Drug Interaction (DDI) Study of LY3437943 in Obese Participants — completed · phase1
- A Study of Retatrutide (LY3437943) in Participants Who Have Obesity or Overweight and Chronic Low Back Pain — active not recruiting · phase3
The grade reflects how much and what kind of research exists — not whether Retatrutide works or is safe. It is computed from PubMed study-type tags and ClinicalTrials.gov registrations as of Oct 22, 2026. Research use only; not medical advice.
Research & Pharmacokinetic Specs
Triple agonist at GIP, GLP-1, and Glucagon (GCGR) receptors. Glucagon agonism increases energy expenditure and hepatic fat oxidation while GIP/GLP-1 agonism controls appetite and glucose.
GIPR, GLP-1R, and Glucagon Receptor (GCGR)
- •Investigational only — Phase 3 ongoing; long-term clinical safety profile still being established
- •Transient increases in resting heart rate and arrhythmia signals in early trials
- •Gastrointestinal adverse events similar to dual agonists
Cheapest Retatrutide by vial size
The lowest price at each size, across all vendors. Tap a size for the full ranking.
Where every vendor sits
Each dot is a vendor’s cheapest in-stock Retatrutide vial, in $ per mg. The spread between the leftmost dot and the median is what shopping around is worth.
Compare every Retatrutide offer
| Product | Size | Link to vendor | |||
|---|---|---|---|---|---|
| Bio Pepz United States Reta 100mg TESTED 81% · 4 | Reta 100mg | 100 mg vial | $176.00 | $1.76best | View ↗ |
| Bio Pepz United States RETA 60MG TESTED 81% · 4 | RETA 60MG | 60 mg vial | $114.40 | $1.91 | View ↗ |
| Bio Pepz United States RETA 50MG TESTED 81% · 4 | RETA 50MG | 50 mg vial | $105.60 | $2.11 | View ↗ |
| Bio Pepz United States RETA 40mg TESTED 81% · 4 | RETA 40mg | 40 mg vial | $96.80 | $2.42 | View ↗ |
| Bio Pepz United States RETA 30mg TESTED 81% · 4 | RETA 30mg | 30 mg vial | $79.20 | $2.64 | View ↗ |
| Bio Pepz United States RETA 15mg TESTED 81% · 4 | RETA 15mg | 15 mg vial | $52.80 | $3.52 | View ↗ |
| PSPeptides United States Retatrutide (1 Vial) — 60MG COA CLAIMED | Retatrutide (1 Vial) — 60MG | 60 mg vial | $229.99 | $3.83 | View ↗ |
| PSPeptides United States Retatrutide (1 Vial) — 50MG COA CLAIMED | Retatrutide (1 Vial) — 50MG | 50 mg vial | $199.99 | $4.00 | View ↗ |
| PSPeptides United States Retatrutide (1 Vial) — 40MG COA CLAIMED | Retatrutide (1 Vial) — 40MG | 40 mg vial | $164.99 | $4.12 | View ↗ |
| Drexa Labs United States Retatrutide Research Peptide (Reta, LY3437943) — 100mg COA CLAIMED | Retatrutide Research Peptide (Reta, LY3437943) — 100mg | 100 mg vial | $479.00 | $4.79 | View ↗ |
| PSPeptides United States Retatrutide (1 Vial) — 30MG COA CLAIMED | Retatrutide (1 Vial) — 30MG | 30 mg vial | $144.99 | $4.83 | View ↗ |
| Drexa Labs United States Retatrutide Research Peptide (Reta, LY3437943) — 60mg COA CLAIMED | Retatrutide Research Peptide (Reta, LY3437943) — 60mg | 60 mg vial | $299.00 | $4.98 | View ↗ |
| PSPeptides United States Retatrutide (1 Vial) — 20MG COA CLAIMED | Retatrutide (1 Vial) — 20MG | 20 mg vial | $104.99 | $5.25 | View ↗ |
| Drexa Labs United States Retatrutide Research Peptide (Reta, LY3437943) — 30mg COA CLAIMED | Retatrutide Research Peptide (Reta, LY3437943) — 30mg | 30 mg vial | $169.00 | $5.63 | View ↗ |
| Drexa Labs United States Retatrutide Research Peptide (Reta, LY3437943) — 20mg COA CLAIMED | Retatrutide Research Peptide (Reta, LY3437943) — 20mg | 20 mg vial | $119.00 | $5.95 | View ↗ |
| PSPeptides United States Retatrutide (1 Vial) — 15MG COA CLAIMED | Retatrutide (1 Vial) — 15MG | 15 mg vial | $89.99 | $6.00 | View ↗ |
| Drexa Labs United States Retatrutide Research Peptide (Reta, LY3437943) — 10mg COA CLAIMED | Retatrutide Research Peptide (Reta, LY3437943) — 10mg | 10 mg vial | $65.00 | $6.50 | View ↗ |
| FRO Peptides United States Retatrutide – Research Peptide (10mg, 30mg) — 30mg COA CLAIMED | Retatrutide – Research Peptide (10mg, 30mg) — 30mg | 30 mg vial | $199.99 | $6.67 | View ↗ |
| Polaris Peptides United States Retatrutide 60mg NO COA FOUNDTESTED 64% · 107 | Retatrutide 60mg | 60 mg vial | $400.00 | $6.67 | View ↗ |
| Research Ready Peptides Canada Retatrutide 40mg COA CLAIMED | Retatrutide 40mg | 40 mg vial | $275.99 | $6.90 | View ↗ |
| Bio Pepz United States RETA 5MG TESTED 81% · 4 | RETA 5MG | 5 mg vial | $35.20 | $7.04 | View ↗ |
| Trusted Peptide United States Retatrutide 10mg TESTED 80% · 2 | Retatrutide 10mg | 10 mg vial | $72.00 | $7.20 | View ↗ |
| PSPeptides United States Retatrutide (1 Vial) — 10MG COA CLAIMED | Retatrutide (1 Vial) — 10MG | 10 mg vial | $74.99 | $7.50 | View ↗ |
| Research Ready Peptides Canada Retatrutide 15 mg COA CLAIMED | Retatrutide 15 mg | 15 mg vial | $115.99 | $7.73 | View ↗ |
| Polaris Peptides United States Retatrutide 35mg NO COA FOUNDTESTED 64% · 107 | Retatrutide 35mg | 35 mg vial | $275.00 | $7.86 | View ↗ |
| PSPeptides United States Retatrutide (1 Vial) — 5MG COA CLAIMED | Retatrutide (1 Vial) — 5MG | 5 mg vial | $39.99 | $8.00 | View ↗ |
| Prime Lab Peptides United States Retatrutide – 24mg COA CLAIMED | Retatrutide – 24mg | 24 mg vial | $195.00 | $8.13 | View ↗ |
| NextChems United States Retatrutide — 30mg (1vial) COA CLAIMED | Retatrutide — 30mg (1vial) | 30 mg vial | $259.95 | $8.66 | View ↗ |
| Polaris Peptides United States Retatrutide 15mg NO COA FOUNDTESTED 64% · 107 | Retatrutide 15mg | 15 mg vial | $130.00 | $8.67 | View ↗ |
| Polaris Peptides United States Retatrutide 10mg NO COA FOUNDTESTED 64% · 107 | Retatrutide 10mg | 10 mg vial | $89.00 | $8.90 | View ↗ |
| FRO Peptides United States Retatrutide – Research Peptide (10mg, 30mg) — 10mg COA CLAIMED | Retatrutide – Research Peptide (10mg, 30mg) — 10mg | 10 mg vial | $89.99 | $9.00 | View ↗ |
| Polaris Peptides United States Retatrutide 5mg NO COA FOUNDTESTED 64% · 107 | Retatrutide 5mg | 5 mg vial | $50.00 | $10.00 | View ↗ |
| NextChems United States Retatrutide — 20mg (1vial) COA CLAIMED | Retatrutide — 20mg (1vial) | 20 mg vial | $215.94 | $10.80 | View ↗ |
| Prime Lab Peptides United States Retatrutide – 12mg COA CLAIMED | Retatrutide – 12mg | 12 mg vial | $150.00 | $12.50 | View ↗ |
| NextChems United States Retatrutide — 10mg (1vial) COA CLAIMED | Retatrutide — 10mg (1vial) | 10 mg vial | $145.00 | $14.50 | View ↗ |
| Prime Lab Peptides United States Retatrutide – 6mg COA CLAIMED | Retatrutide – 6mg | 6 mg vial | $90.00 | $15.00 | View ↗ |
| NextChems United States Retatrutide — 5mg (1vial) COA CLAIMED | Retatrutide — 5mg (1vial) | 5 mg vial | $120.00 | $24.00 | View ↗ |
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Retatrutide pricing FAQ
What is the cheapest Retatrutide right now?
Bio Pepz currently lists Retatrutide at $1.76 per mg (Reta 100mg, $176.00), the lowest of the 9 vendors we compare. The median is $6.67 per mg, so shopping around can save a lot.
How much does Retatrutide cost per mg?
Across 9 vendors, injectable Retatrutide ranges from $1.76 to $8.66 per mg, with a median of $6.67. Larger vials generally cost less per mg, which is why we normalize every listing to a price per milligram.
How much does a 10 mg vial of Retatrutide cost?
A 10 mg vial of Retatrutide costs between $65.00 and $145.00 across 6 vendors, with a median of $89.00. The cheapest is Drexa Labs at $65.00.
Which Retatrutide vendors publish a COA?
10 of the 16 vendors listing Retatrutide say they publish certificates of analysis (COAs). A COA is the vendor’s own claim and can be copied or re-dated, so we also show independent test ratings (Finnrick) on each vendor page where they exist, and let you filter to “COA claimed” vendors.
Is there human research on Retatrutide?
PubMed lists 207 papers on Retatrutide: 10 randomized controlled trials, 13 human clinical studies and 10 animal or lab-only studies, plus 33 registered clinical trials. We grade the evidence base as “Strong”: Several randomized controlled trials in humans, often summarized by meta-analyses. This describes how much research exists, not whether it works.
Is Retatrutide legal and safe to use?
Retatrutide is sold for laboratory research use only. PeptideComps compares prices and does not give medical advice, and we can’t vouch for any product’s quality or legality — check the rules where you live.