Semaglutide is a synthetic analogue of glucagon-like peptide-1 (GLP-1), engineered with a C18 fatty diacid chain that binds albumin and extends its half-life far beyond the native hormone. It is the most studied molecule in the incretin class and the reference point against which newer multi-receptor compounds are measured. Heartland Bio Labs supplies semaglutide for laboratory research in 2mg, 5mg, and 10mg vials, with independent purity and identity testing on every product.
What semaglutide is
Native GLP-1 survives only minutes in circulation. Semaglutide modifies the GLP-1 backbone with an amino acid substitution that resists enzymatic breakdown and a fatty diacid chain that binds albumin, stretching activity from minutes to days. That design made single-receptor incretin signaling practical to study over sustained periods, and it established the template that tirzepatide and retatrutide later extended to two and three receptors. A structural profile is in our semaglutide research overview.
Product characteristics
- Synthetic GLP-1 receptor agonist, single-receptor scope
- Modified 31-amino acid backbone with C18 fatty diacid chain, albumin binding
- Supplied as white lyophilized powder in sealed vials
- Available strengths: 2mg, 5mg, and 10mg
- Purity verified by HPLC, identity confirmed by mass spectrometry, at an independent laboratory
- For laboratory research use only
Semaglutide vs tirzepatide vs retatrutide
The three compounds form a receptor-count series: semaglutide engages GLP-1 alone, tirzepatide adds GIP, and retatrutide adds glucagon receptor activity on top of both. For research programs, semaglutide is the clean baseline: one receptor, one pathway, and the deepest published literature in the class. Comparative study designs typically anchor on it for exactly that reason. Our retatrutide vs tirzepatide comparison covers the multi-receptor end of the series in detail.
How this product is verified
Semaglutide's popularity has flooded the market with unverified material, which makes documentation the entire game. Every Heartland product is tested by an independent analytical laboratory: HPLC for purity, mass spectrometry for identity. The certificates are published in our COA portal where you can read them before ordering, and our guide on reading a peptide certificate of analysis explains what each field proves. A supplier who will not show you this document before payment is asking you to take the label on faith.
Strengths and pricing
Semaglutide is stocked in three strengths: 2mg at $49, 5mg at $105, and 10mg at $185, all shipping from stock. The per-milligram cost falls as vial size rises, which matters for programs running repeated or longer studies. A 20mg vial appears on the selector with a notify option when it is not in stock. Institutional quantities run through our wholesale program.
Storage and handling
Lyophilized semaglutide is stable kept sealed, cool, dry, and away from light; refrigerate for longer storage. Reconstitute with bacteriostatic water, refrigerate the solution, and use it within the window your research protocol defines. Avoid repeated temperature swings and agitation.
Where to buy semaglutide for research
Orders placed before 2:00 PM Central ship the same day from the Tulsa, Oklahoma area with tracking. If you are comparing suppliers, apply the same checklist we publish for every compound in our guide to vetting a research peptide supplier: independent testing, published certificates, identity confirmation alongside purity, and clear research-use terms. We built this store to pass that checklist in public.
Reconstitution math
Work out concentration (mg/mL), amount per volume and molarity for any vial size with the Semaglutide reconstitution calculator, general peptide calculator. For the bench procedure see how to reconstitute peptides.
Research use only
Semaglutide from Heartland Bio Labs is sold strictly for laboratory research and identification purposes. It is not a drug, it has not been evaluated by the FDA, and it is not for human or veterinary use of any kind. By purchasing, you affirm that you are qualified to handle research compounds and agree to our research use policy.
