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We've been getting a lot of traction form labs running the retatrutide protocol, and teh feedback on Reddit is pretty much consistent—it's purity that makes or breaks the results, so we keep ours at ≥99% verified by HPLC every batch.
Basically, if you're looking at GLP-1/GIP receptor agonist studies for obesity or glucose metabolism, this lyophilized powder reconstitutes cleanly in water and holds up for 24 months at -20°C protected from light.
The CAS is 2381089-83-2, and the molecular weight varies by analog—we usually have stock on the core peptide, but confirm lead time for custom variants (2-4 weeks). Each vial is sealed under inert gas, sterile filtered, and non-pyrogenic, so you're not chasing contamination issues.
What sets us apart is the Janoshik testing on top of our own HPLC and MS—most buyers don't realize how much batch-to-batch variation cheaper supliers hide until they run a head-to-head, our company provide a COA with every order, and we'll flag it if a batch is tighter tolerance than reagent grade.
One thing that catches people: this isn't for cell culture work where you need ultra-low endotoxin specs—it's optimized for in vivo rodent models and metabolic assays, not sensitive enzymatic reactions.
Anyway, the 5mg vial format is easier to handle for small-scale protocols, and we usually ship within 48 hours if stock is on hand.
We back that up with HPLC and MS from our own QC plus Janoshik testing — so you're getting third-party confirmed ≥99% purity with every batch.
MOQ is typically 1 vial for single-peptide orders, but we can discuss bulk discounts if you need larger quantities for your obesity studies.
Yes, a COA is provided with every batch — it shows HPLC purity, MS confirmation, sterility test results, and storage details so you can verify everything.
Store it at -20°C, protected from light, and it stays stable for 24 months. Just keep it sealed until use — it's packed with inert gas to prevent degradation.
We can adjust vial fill sizes or packaging if you're running a consistent protocol — just let us know the quantity you need per vial, and we'll work it out.
