Ordered Friday 3 PM, delivered Tuesday morning in Utrecht. Neatly packed and the COA simply arrived by email.
Sven K.
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GLP-1 analogue of 31 amino acids, supplied as a research vial.
4.9 · 124 reviewsBuy semaglutide as a research-grade vial at ≥99% HPLC purity, dispatched the same working day from the Netherlands. The GLP-1 analogue of 31 amino acids that medicine calls Ozempic, Wegovy and Rybelsus; we supply the pure research material, not a medicine. For laboratory research only, not for human use.
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Bacteriostatic water
Needed to reconstitute lyophilised vials.
Insulin needles
Alcohol swabs
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1 more for −10% off
Shipping €7.95 · free from €125
It is an agonist of the GLP-1 receptor. In medicine that property is used to lower blood sugar and curb appetite, which is why it is well known around type 2 diabetes and weight loss. In research it counts as one of the best-studied incretin mimetics, substances that mimic the gut hormone GLP-1. One thing belongs with that straight away: what BasePurity supplies is the research-grade vial for the lab, not the medicine. We make no health or weight-loss claims; here it is a research material and not intended for use in humans.
As soon as food reaches your gut, it releases GLP-1. Semaglutide is designed to mimic that hormone and stay active considerably longer. Through the GLP-1 receptors it touches several processes at once in research: insulin release gets going as blood sugar rises, the stomach empties more slowly, and the satiety centres in the brain are addressed. Those three tracks together explain the attention the substance receives in medicine.
This is the most important distinction on this page. What we sell is a research-grade vial: the pure, freeze-dried peptide for laboratory research. The registered medicines Ozempic, Wegovy and Rybelsus are something else; they go through a doctor and a pharmacy, with their own dosing, guidance and monitoring. Our vial does not replace that route and is explicitly not for human use. Researchers choose the vial precisely because they want to work from pure starting material and set the concentration themselves.
A fast-growing family of research compounds has formed around GLP-1. Tirzepatide lays a second route alongside GLP-1 through GIP, and retatrutide adds a third with glucagon. They are often compared because they act on related but slightly different parts of the metabolism. If you want to draw that comparison, tirzepatide and retatrutide sit separately in our metabolic line.
You receive freeze-dried powder in a sterile vial. In research that is made up with bacteriostatic water and then stands dissolved, ready for lab use. We deliberately give no human dosing advice: which amount and approach fit follows from the study design, not from a usage dose. The details on this page, from purity to vial size and sequence, are meant for your research documentation.
Semaglutide is a potent substance, and honesty belongs with that. Under medical supervision, side effects such as nausea, gastrointestinal complaints and reduced appetite are reported. Outside that supervision the Netherlands is seeing a rise in poisoning reports around this type of GLP-1 substance. That is exactly why we supply it as a research material only and not for consumption.
With a complex peptide like this one, usable research stands or falls on purity. Every batch therefore goes through HPLC for ≥99% purity and for identity, and leaves freeze-dried so it reaches you stable. That way you know exactly what you are holding; purity, sequence, molecular weight and CAS are in the table at the bottom of this page.
Verified buyers in the Netherlands, Belgium and Germany
Ordered Friday 3 PM, delivered Tuesday morning in Utrecht. Neatly packed and the COA simply arrived by email.
Sven K.
Verified purchase
Finally a supplier that just shows the HPLC + MS figures. Purity was exactly as promised.
Lotte v.d. B.
Verified purchase
Fast parcel out of the Netherlands. Emailed a question, got a reply within a few hours. Top service.
Paul M.
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Next business day in Rotterdam. Sturdily packed, vial arrived intact. Will definitely order again.
Marco R.
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Ordered around 3 PM, delivered Wednesday morning. The lot number on the vial matched the report I asked for.
Niels J.
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Within 24 hours from NL stock. COA with MS identity confirmation — hard to find anywhere else.
Jonas W.
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Delivery spot-on, COA detailed. Would appreciate a more extensive FAQ per peptide on the site.
Eva R.
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Ordered Tuesday before 4 PM, at my door Wednesday in Breda. Confirmation and dispatch email arrived neatly in sequence.
Bram H.
Verified purchase
Genuinely from NL stock, so here within a day. Vial well freeze-dried, everything tightly packed.
Femke S.
Verified purchase
Purity on the HPLC comfortably above 99%. Delivery a day later than hoped, nothing else to fault.
Thijs M.
Verified purchase
Ordered Friday 3 PM, delivered Tuesday morning in Utrecht. Neatly packed and the COA simply arrived by email.
Sven K.
Verified purchase
Finally a supplier that just shows the HPLC + MS figures. Purity was exactly as promised.
Lotte v.d. B.
Verified purchase
Fast parcel out of the Netherlands. Emailed a question, got a reply within a few hours. Top service.
Paul M.
Verified purchase
Next business day in Rotterdam. Sturdily packed, vial arrived intact. Will definitely order again.
Marco R.
Verified purchase
Ordered around 3 PM, delivered Wednesday morning. The lot number on the vial matched the report I asked for.
Niels J.
Verified purchase
Within 24 hours from NL stock. COA with MS identity confirmation — hard to find anywhere else.
Jonas W.
Verified purchase
Delivery spot-on, COA detailed. Would appreciate a more extensive FAQ per peptide on the site.
Eva R.
Verified purchase
Ordered Tuesday before 4 PM, at my door Wednesday in Breda. Confirmation and dispatch email arrived neatly in sequence.
Bram H.
Verified purchase
Genuinely from NL stock, so here within a day. Vial well freeze-dried, everything tightly packed.
Femke S.
Verified purchase
Purity on the HPLC comfortably above 99%. Delivery a day later than hoped, nothing else to fault.
Thijs M.
Verified purchase
The BPC + TB stack comes as two separate vials, each with its own COA. Not pre-mixed — exactly what I wanted.
Tom B.
Verified purchase
The COA was clear and readable. Delivered the next business day in The Hague. Helpful support by email.
Charlotte F.
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Emailed a question about storage temperature and got a concrete answer instead of a stock phrase. Saved me the digging.
Anouk d. V.
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Purity per COA 99.3%. Vial nicely freeze-dried, no yellow discolouration. Shipping from NL trouble-free.
Lukas K.
Verified purchase
Emailed a question on Saturday, Monday morning I got a reply from a real person. No cookie-cutter template. Real service.
Sara P.
Verified purchase
Shipped to Tilburg in one business day. Identity neatly confirmed by MS on the analysis report.
Daniel S.
Verified purchase
Second order. The first was problem-free, so no reason to look elsewhere. COA again with HPLC + MS figures.
Iris K.
Verified purchase
Messaged a question about storage, got a clear answer. Nice that there is simply someone reachable.
Joris V.
Verified purchase
Purity on the report matched what the page said. Delivered next day in Nijmegen. Exactly what I was after.
Sanne D.
Verified purchase
Shipped quickly from the Netherlands, and the COA confirmed the purity nicely. Third time ordering here without complaints.
Ruben T.
Verified purchase
The BPC + TB stack comes as two separate vials, each with its own COA. Not pre-mixed — exactly what I wanted.
Tom B.
Verified purchase
The COA was clear and readable. Delivered the next business day in The Hague. Helpful support by email.
Charlotte F.
Verified purchase
Emailed a question about storage temperature and got a concrete answer instead of a stock phrase. Saved me the digging.
Anouk d. V.
Verified purchase
Purity per COA 99.3%. Vial nicely freeze-dried, no yellow discolouration. Shipping from NL trouble-free.
Lukas K.
Verified purchase
Emailed a question on Saturday, Monday morning I got a reply from a real person. No cookie-cutter template. Real service.
Sara P.
Verified purchase
Shipped to Tilburg in one business day. Identity neatly confirmed by MS on the analysis report.
Daniel S.
Verified purchase
Second order. The first was problem-free, so no reason to look elsewhere. COA again with HPLC + MS figures.
Iris K.
Verified purchase
Messaged a question about storage, got a clear answer. Nice that there is simply someone reachable.
Joris V.
Verified purchase
Purity on the report matched what the page said. Delivered next day in Nijmegen. Exactly what I was after.
Sanne D.
Verified purchase
Shipped quickly from the Netherlands, and the COA confirmed the purity nicely. Third time ordering here without complaints.
Ruben T.
Verified purchase