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Best Retatrutide + Cagrilintide Blend Vendors of 2026
Ranked by Price, Purity, and Reputation
Prices & coupons verified August 9, 2026
Pre-mixed research blend pairing retatrutide (GLP-1/GIP/glucagon tri-agonist) with cagrilintide (long-acting amylin analog). Sometimes called RetaCagri or Reta/Cagri in community shorthand. Studied as a quad-pathway metabolic stack — appetite, glucose handling, energy expenditure, and amylin-mediated satiety converge in a single dose. Mirrors Novo Nordisk's investigational semaglutide+cagrilintide combination on the stronger retatrutide backbone.
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What's in the Retatrutide + Cagrilintide Blend?
Vendor Comparison
| Rank | Vendor | COA | Score | Doses |
|---|---|---|---|---|
| 1 | Nura PeptidePREMIUM | Yes | 10/10 | |
| 2 | EZ Peptides | Yes | 9.9/10 | |
| 3 | Glacier Aminos | Yes | 9.8/10 |
How We Score Blend Vendors
Our scoring is based on two weighted factors:
Price Competitiveness (50%)
Normalized to total cost per milligram across all peptides in the blend.
COA Availability (50%)
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Premium partner. Nura Peptide pays for priority placement on this page. Our affiliate commission, COA verification, and per-mg pricing comparison remain independent — we still surface lower prices from other vendors when applicable. How premium placement works.