Lumera Labs Journal · Canada
Tirzepatide vs Semaglutide: A Canadian Researcher's Comparison
Published 2026-02-27 · Lumera Labs Editorial · Kelowna, BC
Short answer: Semaglutide is a single GLP-1 receptor agonist; Tirzepatide is a dual GLP-1 / GIP agonist. Both are widely investigated in metabolic research. Lumera Labs supplies both as HPLC-verified reference standards from Kelowna, BC — Semaglutide from $30 CAD, Tirzepatide from $40 CAD.
Receptor profile
| Compound | Targets | MW (approx) |
|---|---|---|
| Semaglutide | GLP-1 receptor | ~4113 Da |
| Tirzepatide | GLP-1 + GIP receptors (dual) | ~4814 Da |
Dose tier availability at Lumera Labs
Semaglutide: 5 mg ($30), 10 mg ($50), 15 mg ($70), 20 mg ($85), 30 mg ($120).
Tirzepatide: 5 mg ($40), 10 mg ($70), 15 mg ($95), 20 mg ($120), 30 mg ($165), 40 mg ($210), 50 mg ($250), 60 mg ($290).
Lyophilization and storage
Both are supplied lyophilized in clear glass vials with chrome-crimped caps. Storage at -20°C maintains stability 24+ months. Reconstitute with bacteriostatic water; use within 28 days at 2–8°C.
Choosing for your research
Single-receptor mechanism research → Semaglutide. Dual-receptor synergy research → Tirzepatide. Triple-agonist follow-up research → see Retatrutide (GLP-1 + GIP + glucagon).
Why Lumera Labs?
Both compounds ship same-day from Kelowna, BC. Domestic Canadian shipping eliminates customs holds (a 15–25% risk on US imports). HPLC-verified ≥99% purity per lot, COA available on request.
Frequently Asked Questions
Is Tirzepatide stronger than Semaglutide?
Tirzepatide is a dual GLP-1/GIP agonist while semaglutide is a single GLP-1 agonist. In published metabolic research models, tirzepatide often shows greater effects, though direct comparisons depend on dose and protocol.
What are the dose tiers for tirzepatide research?
Lumera Labs offers tirzepatide in 5, 10, 15, 20, 30, 40, 50, and 60 mg vials in Canada, all HPLC-verified.
Do you ship semaglutide to all Canadian provinces?
Yes. Lumera Labs ships semaglutide from Kelowna, BC to all 10 provinces and 3 territories with cold-chain insulation. 24-48h transit for most regions.
Are both compounds the same molecular size?
Tirzepatide is larger (~4814 Da) than semaglutide (~4113 Da) due to the additional GIP-binding domain.
Should I order BAC water with my GLP-1 research peptide?
Yes. Lyophilized peptides require reconstitution with sterile or bacteriostatic water before use. Add a 10 mL vial at lumerapeptide.com/products/bac-water/.
Disclaimer: All Lumera Labs products are supplied for laboratory research use only. Refer to our research-use declaration for full terms.