Buy RETATRUITIDE

Buy Retatruitide (LY3437943) is a triple GLP-1/GIP/glucagon agonist developed by Eli Lilly. It’s still in Phase 3 clinical trials, making it the most potent weight loss peptide available that has no FDA-approved prescription version yet. Phase 2 trials showed average weight loss of ~24% at 48 weeks, higher than semaglutide (~15%) or tirzepatide (~22%). The only way to access it currently is via research peptide vendors.

Where to Buy Retatrutide, Our Top Pick

Ascension Peptides is our primary recommendation:

• Carries R-10 (10mg, $120) and R-30 (30mg, $200)
• US-based manufacturing
• Third-party COA on every batch, HPLC purity ≥98%
• Mass spectrometry verification (critical for a complex triple agonist)
• Discreet US domestic shipping

Red Flags to Avoid; Buy Retatruitide

•  No COA or COA only “available on request”
•  Purity not listed, or listed as “≥95%” without HPLC documentation
•  Dramatically underpriced (R-30 for $60 = almost certainly underdosed)
•  Ships from overseas with no US warehouse
•  No mass spectrometry data (especially important for retatrutide)
•  Generic product photos with no lot number information

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Reconstituting Retatrutide After Purchase; Buy Retatruitide

• Add BAC water to the vial slowly (down the inside wall, never directly onto powder)
• Recommended: 2mL per 10mg vial = 5mg/mL. 3mL per 30mg vial = 10mg/mL.
• Full guide at: /blog/retatrutide-reconstitution-guide
• Calculator: Reconstitution Calculator
• Store refrigerated, use within 28 days

Retatrutide Dosage After Purchase

• Starting dose: 0.5-2mg per week (once weekly subcutaneous injection)
• Titrate up gradually to manage GI side effects
• Most effective protocols reach 4-8mg/week over time
• Full dosage chart: /blog/retatrutide-dosage-chart

mg (5 vials × 2 mg)