For laboratory research purposes only. Not for human consumption.

Retatrutide
Product Overview
Retatrutide 20mg is offered by Healthy Peps as a laboratory research peptide. This product is supplied in lyophilized form at ≥99% purity and is intended strictly for in vitro and laboratory research purposes only. Not for human or veterinary consumption.
This product is supplied in lyophilized powder and is packaged in sealed, laboratory-grade vials. Review the current batch report to confirm identity, content and analytical purity. A catalogue specification is not a batch-specific test result.
This product is not intended for human or veterinary consumption. For laboratory and research use only.
Buy Retatrutide 20 mg in Canada — Batch Documented
Retatrutide 20 mg is supplied by Healthy Peps as a lyophilized research peptide in a single sealed vial, shipped from Canada with batch documentation and an available Certificate of Analysis.
Reference Data
- Compound
- Retatrutide (GIP / GLP-1 / glucagon receptor triagonist)
- CAS Number
- 2381089-83-2
- Reported Molecular Weight
- ≈ 4,731 Da
- Appearance
- White to off-white lyophilized powder
- Solubility (lab)
- Water, saline, phosphate-buffered solutions
- Vial Format
- 20 mg per vial, single-use septum vial
- Storage
- Store lyophilized at −20 °C, protected from light
Research Context
Retatrutide is a synthetic peptide engineered as an unbalanced triple agonist at the GIP, GLP-1 and glucagon receptors. Published receptor pharmacology describes single-molecule co-activation of all three receptors, which is the reason it appears repeatedly in the literature on incretin and glucagon receptor co-agonism: the research question is whether adding glucagon receptor activity to the incretin effect alters energy-expenditure signalling in ways a dual GIP/GLP-1 agonist does not.
For laboratory work, retatrutide is used to study receptor-mediated G-protein signalling, cAMP accumulation and downstream metabolic pathway activation in cell-based assay systems. The peptide is also used as a comparator compound when researchers want a three-receptor agonist profile alongside dual-agonist or single-agonist reference standards in the same assay plate.
The most cited clinical dataset is the phase 2 obesity trial reported by Jastreboff and colleagues in the New England Journal of Medicine (2023), which examined dose-dependent body-weight changes over 48 weeks. That study is frequently used in the literature as a reference point for the potency of triple-receptor co-agonism relative to established single and dual agonists.
Healthy Peps supplies the 20 mg format because extended in vitro assay series typically require repeat preparations from one documented batch; a single larger vial keeps the same batch number and purity result behind an entire experimental series, which is the point of batch-specific documentation.
Selected Reading & Research Notes
- Jastreboff et al. (2023): Triple-Hormone-Receptor Agonist Retatrutide for Obesity — Phase 2 clinical research. The investigational trial material is not evidence of the identity, safety or efficacy of a catalogue product.
Citations are provided for research orientation only. Healthy Peps does not claim that any cited finding applies to this material, and published results should be independently verified before use in a protocol.
Laboratory Handling
Reconstitute in a suitable laboratory diluent such as bacteriostatic water; add diluent down the vial wall and swirl gently rather than vortexing, since mechanical shear can aggregate peptides. Reconstituted material is best stored refrigerated and used within the working period set by your own protocol, and should be aliquoted if repeated freeze-thaw cycles are unavoidable. Solutions should remain clear; a cloudy or precipitate-containing preparation should not be used.
How It Differs From Related Compounds
Compared with dual GIP/GLP-1 agonists, retatrutide adds a third receptor axis, which is why it is used in research designs that specifically measure glucagon receptor contribution. Compared with CJC-1295 No DAC or ipamorelin on this catalogue — which act on the GH/ghrelin axis — retatrutide belongs to a completely separate receptor family, so it is not a substitute in a growth-hormone research protocol.
Retatrutide — Buyer Questions
Products sold by Healthy Peps are intended strictly for laboratory research use only. They are not intended for human consumption and are not intended to diagnose, treat, cure, or prevent any disease. Healthy Peps does not provide medical advice.
Customer Reviews
My go-to now
Switched all my orders here about 4 months ago. Never had a single issue. Customer service actually responds to emails too, which is rare.
Sam P.
Wish the vial was bigger
20mg goes faster than you'd think. Wish there was a 30 or 40mg option. Quality wise though, no complaints. Dissolves clean and stores well.
Vanessa H.
Solid product
Happy with it. Only reason I'm giving 4 not 5 is I wish they had a smaller size option. The 20mg is a lot if you're not running a long protocol.
Lina K.
Lab verified
We run a small lab and have been ordering here for 3 months. Had our COA independently verified on two batches, both matched. That's why we keep coming back.
Bri F.
Been ordering for months
Probably my 5th or 6th order. Never had a problem. Always in stock, which is nice because my last supplier was constantly out.
Rob A.
Good stuff
Been using this about 6 weeks now. Consistent, no issues with reconstitution. The COA they provide is legit, I checked. Price is fair too.
Tom B.
Finally a Canadian source I trust
Was buying from a US site before and dealing with customs was a nightmare. Found Healthy Peps through a friend and I'm not going back. Same quality if not better, and no border headaches.
Jess T.
Works as expected
Most consistent retatrutide I've tried. Every batch behaves the same way. That tells me the manufacturing is solid.
Nate W.
Third order, still impressed
Third time ordering and it's been smooth every time. Shipping to Toronto takes about 2 days which is crazy fast. Vial is always sealed properly and the powder looks clean. Can't ask for more.
Mike R.
Fast shipping and legit COA
Ordered Monday, had it Wednesday morning in Calgary. The COA was easy to find on their site, that's a big deal for me. Reconstituted clean.
Dave M.
No complaints at all
Ordering, delivery, the product itself, all top notch. Vial came cold, packaging was professional. This is how it should be done.
Eric L.
Good but pricey
Quality is there no question. Bit more expensive than some other places but you get what you pay for. The COA being public makes it worth it.
Cara D.
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