GLP-3/RT10mg research peptide · Canada
Also written and searched as Reta / Retta / Retatrutide — same compound, same vial, same lot number.
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- Ships from Vancouver — no customs, no duties
- Dispatched in 1–2 business days · tracked & insured
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Key facts
- Compound:
- GLP-3/RT
- Also known as:
- Reta / Retta / Retatrutide
- Purity:
- ≥99%, verified by HPLC
- Tested by:
- independent third-party lab (HPLC purity and measured content)
- Molecular weight:
- 4759.5 g/mol
- Certificate of analysis:
- for members only · join free
- Ships from:
- Vancouver, BC — typically 2–5 business days, tracked and insured, no customs
- Intended use:
- in vitro laboratory research only — not for human or veterinary consumption
Page last updated
GLP-3/RT is our name for retatrutide, a lab-made peptide that researchers call a “triple agonist” because it acts on three receptors at once (GLP-1, GIP and glucagon). It’s one of the most talked-about compounds in metabolic research right now. It comes as a freeze-dried powder in a 10 mg vial.
Order GLP-3/RT in Canada with the paperwork to back it. One 10 mg vial, ≥99% purity, molecular weight 4759.5 g/mol. Tested by an independent lab for purity and content (HPLC). Certificates of Analysis (COAs) are for members only. Tracked, insured delivery from Vancouver, BC — by Canada Post Xpresspost, usually 1 to 4 business days, with no customs step and no brokerage fee.
Sold as a laboratory research material only, for in vitro use. It isn’t a medicine and isn’t meant for people or animals.
Primary literature
- Triple–Hormone-Receptor Agonist Retatrutide for Obesity — A Phase 2 Trial — New England Journal of Medicine, 2023
The Phase 2 trial (n=338). 48-week dose-response for the GIP/GLP-1/glucagon triple agonist.
- Lilly’s triple agonist, retatrutide, delivered powerful weight loss in pivotal Phase 3 obesity trial (TRIUMPH-1) — Eli Lilly and Company, May 2026
Pivotal Phase 3 topline, 2,339 participants randomised.
Cited for research context. A citation is not a claim that this compound is safe, effective, or approved for any use.
Research Use Only. This compound is a laboratory material for in vitro research. It is not a medicine and is not for human or veterinary use. If you’re looking for help with your health, please speak with a doctor or pharmacist.
New to research compounds? Start here. Buying in Canada: why domestic means no customs. Checking quality: how to read a COA.
What is GLP-3/RT? GLP-3/RT at a glance
In short: GLP-3/RT is $69.99 CAD at Popular Peptides Canada, ships from Vancouver with no customs, and usually arrives in 1–4 business days.
- What it is
- GLP-3/RT is our name for retatrutide, a lab-made peptide that researchers call a “triple agonist” because it acts on three receptors at once (GLP-1, GIP and glucagon). It’s one of the most talked-about compounds in metabolic research right now.
- Price
- $69.99 CAD. Prices are in Canadian dollars, so there’s no exchange-rate surprise.
- Size
- 10mg
- Purity
- ≥99%, tested by an independent lab (HPLC purity and content)
- Ships from
- Vancouver, BC, to anywhere in Canada. It never crosses a border, so there’s no customs and no brokerage fee.
- Delivery
- Dispatched in 1–2 business days by Canada Post Xpresspost, tracked and insured. Usually 1–2 days in BC, 2–3 on the Prairies and to major Ontario and Québec cities, 2–4 in Atlantic Canada.
- Shipping cost
- Free over $300 CAD, otherwise a flat $24.99.
- Lab report
- Certificates of Analysis are for members only.
- Pay with
- Interac e-Transfer, with an extra 10% off applied at checkout. Card payments are temporarily paused while we upgrade our payment system.
- Sold for
- Laboratory research only. It isn’t a medicine and isn’t meant for people or animals.
New to this? Our plain-language guide explains everything from lab reports to delivery, and our Canada vs imported guide shows why ordering inside Canada is simpler.
GLP-3/RT — compound background
Lipidated single-chain triple receptor agonist (GIP / GLP-1 / glucagon)
GLP-3/RT is a rationally engineered single peptide chain designed to activate three receptors at once — GIP, GLP-1, and glucagon. It represents the third generation of incretin design: mono-agonists first, dual agonists such as GLP-2/Tirz second, and triagonists third. Adding glucagon-receptor activity is the conceptual leap, since glucagon signalling contributes energy expenditure rather than only appetite and glycaemic effects.
Solubility & reconstitution
Dissolves readily but behaves like a surfactant, not like a small peptide. The C20 fatty-diacid chain that gives GLP-3/RT its extended half-life is amphiphilic, so the molecule self-associates and readily generates foam. Solutions may look faintly opalescent at higher concentrations from micelle formation — this is normal for lipidated peptides and is not the same as precipitation.
Commonly worked at 5–10 mg/mL.
Storage
Sealed at -20 °C. Lipidated incretin peptides are among the more thermally robust compounds in this catalogue as dry powder. Refrigerate at 2–8 °C. The albumin-binding fatty-acid chain also confers real solution stability, so the working window is longer than for most peptides here.
Commonly worked with for 4–6 weeks at 2–8 °C.
Stability
GLP-3/RT fails by physical aggregation far more readily than by chemical degradation. That inverts the usual priority: gentle handling matters more than light protection.
Reading the Certificate of Analysis
Confirm the mass near 4759.5 Da. For lipidated peptides the most valuable extra data point is aggregate content by size-exclusion chromatography — RP-HPLC purity can read high while soluble aggregates are present, because aggregates often dissociate under the organic mobile phase.
Background and handling information is educational, for in-vitro laboratory research use only — not medical advice, dosing, or usage guidance, and not a description of use in humans or animals.
How much does GLP-3/RT cost in Canada?+
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GLP-3/RT laboratory reference
GLP-3/RT is lipidated single-chain triple receptor agonist (gip / glp-1 / glucagon). Handling requirements follow from that chemistry rather than from generic peptide guidance — the pages below cover each aspect specifically for this compound.
Lyophilized and reconstituted storage conditions, plus the practical working window.
Diluent selection, dissolution behaviour, and the calculator preset for this compound.
Which solvents work, why, and what abnormal dissolution behaviour indicates.
The specific chemical routes by which this molecule breaks down, and how to limit each.
Which assays are informative for this molecule, and what to actually check on its COA.
Compound-specific bench practices, and the errors most often made with this molecule.
What to inspect on arrival, and which conditions actually warrant rejecting a vial.
Questions specific to this compound — structure, chemistry, and common misconceptions.
GLP-3/RT compared with
Reference content is educational laboratory-handling information for in-vitro research use only — not medical advice, not usage guidance, and not a protocol.