
Buy Semaglutide 3mg
GLP-1 receptor agonist — the active compound in Ozempic and Wegovy. The most clinically validated weight-loss peptide.
Product Specifications
- Chemical
- GLP-1 receptor agonist (31-amino acid lipidated peptide)
- CAS Number
- 910463-68-2
- Purity
- ≥98% HPLC verified
- Form
- Lyophilized powder
- Storage
- −20°C long-term / 2–8°C reconstituted
- SKU
- PG-1117
Why Buy Semaglutide 3mg from Peptide Scientists
Semaglutide is the most clinically studied GLP-1 agonist with years of post-approval safety data. Buying it as a research peptide gives you the same molecule found in Ozempic and Wegovy — at a fraction of pharmacy pricing.
Our Semaglutide is sourced from Phiogen with ≥98% HPLC verification. Lyophilized powder ships with full QC documentation.
The 3mg vial is the entry format — ideal for first-time buyers wanting to test tolerability before committing to larger supply. We also offer 6mg, 12mg, 20mg, and 30mg vials.
About Semaglutide 3mg
Semaglutide (CAS: 910463-68-2) is a 31-amino-acid GLP-1 analog with C18 fatty diacid lipidation, enabling once-weekly subcutaneous dosing via albumin binding.
Mechanism: GLP-1 receptor agonism in the hypothalamus drives appetite suppression; peripherally it slows gastric emptying and enhances glucose-dependent insulin secretion. The 5-day half-life supports the weekly dosing schedule used in STEP and SUSTAIN trials.
Phase 3 STEP-1 trial demonstrated −14.9% mean body weight reduction at 68 weeks (2.4mg/week dose). SELECT cardiovascular outcomes trial showed 20% reduction in MACE.
Key Features
- Active compound in Ozempic, Wegovy, and Rybelsus
- Most clinically validated GLP-1 agonist
- −14.9% body weight at 68 weeks (STEP-1 trial)
- 20% MACE reduction in SELECT cardiovascular trial
- ≥98% HPLC verified, free US shipping over $200
Frequently Asked Questions
Is this the same Semaglutide as Ozempic?
Should I buy Semaglutide or Tirzepatide?
Why is the 3mg vial so much cheaper?
How long does the 3mg vial last?
Related Products

BPC-157 + TB-500 Blend 20mg
Buy BPC-157 + TB-500 Blend 20mg online — research-grade lyophilized peptide for laboratory use. Body Protection Compound-157 (15-amino-acid pentadecapeptide). ≥98% HPLC purity verified.
CAS: 137525-51-0
Laboratory Use Only. This product is sold for in-vitro laboratory use. Not for human consumption, injection, or therapeutic application. Consult applicable regulations in your jurisdiction.
Semaglutide 3mg
$49.99

