GLP-1 technical reference
Semaglutide in Mexico — GLP-1 Agonist for Scientific Research
What is Semaglutide?
Semaglutide is a synthetic analog of the GLP-1 peptide (glucagon-like peptide-1) engineered to resist enzymatic degradation by DPP-4 and extend its half-life. It selectively activates the GLP-1R receptor, expressed in the pancreas, the central nervous system and the gastrointestinal tract. Activation drives glucose-dependent insulin secretion, glucagon suppression, delayed gastric emptying and reduced energy intake through the gut-brain axis. It is the reference standard in single GLP-1 agonism research.
Clinical reference data — STEP 1 trial
In the STEP 1 trial (Wilding et al., NEJM 2021), the pharmaceutical formulation of Semaglutide 2.4 mg weekly was associated with a mean reduction of 14.9% in body weight at 68 weeks, versus 2.4% in the placebo group, in adults with overweight or obesity without type-2 diabetes. This established Semaglutide as the first GLP-1 agonist with robust phase-3 evidence for weight control. The data refer to Ozempic®/Wegovy® (approved pharmaceutical formulations), not to RUO materials.
Semaglutide vs Tirzepatide vs Retatrutide
| Peptide | Receptors | Weight reduction | Phase | Regulatory status |
|---|---|---|---|---|
| Semaglutide | GLP-1R | −14.9% (STEP 1) | Phase 3 | Approved (Ozempic/Wegovy) |
| Tirzepatide | GLP-1R + GIPR | −22.5% (SURMOUNT-1) | Phase 3 | Approved (Mounjaro/Zepbound) |
| Retatrutide | GLP-1R + GIPR + GCGR | −24.2% (Phase 2 NEJM) | Phase 3 ongoing | In development |
Note: Cross-trial comparison, not a head-to-head study.
Technical specifications — Peptide Life Semaglutide
| Parameter | Value |
|---|---|
| Name | Semaglutide |
| Presentation | Lyophilized vial 5 mg |
| Purity | ≥99% HPLC-UV 220 nm |
| Identity | ESI-MS ±0.1 Da |
| Storage | −20°C |
| Shelf life | ≥18 months |
| Use | Research Use Only (RUO) |
| Price | $2,100 MXN (VAT incl.) |
Frequently asked questions about Semaglutide in Mexico
+What is Ozempic and how does it differ from Peptide Life's Semaglutide?
Ozempic® is the brand name of Semaglutide approved by the FDA and COFEPRIS as a medicine for type-2 diabetes and weight management. Peptide Life's Semaglutide is a Research Use Only (RUO) material for in vitro scientific research, with no regulatory approval for human use. They are not equivalent nor interchangeable.
+How much does research-grade Semaglutide cost in Mexico?
The 5 mg vial of Peptide Life Semaglutide is priced at $2,100 MXN including VAT and nationwide shipping. For volume quotes, contact support.
+Where can I buy research Semaglutide in Mexico?
Peptide Life supplies lyophilized Semaglutide with ≥99% HPLC purity and verifiable COA for scientific research. Shipping in 24–48 hours to Mexico City, Guadalajara, Monterrey and all of Mexico.
+Is Peptide Life's Semaglutide the same as Wegovy?
No. Wegovy® is an approved pharmaceutical formulation with clinical-grade manufacturing controls, therapeutic indication and regulatory oversight. Peptide Life's Semaglutide is a research reagent (RUO) for exclusive laboratory use.
+What studies support Semaglutide for weight loss?
The STEP program (Semaglutide Treatment Effect in People with obesity) includes several phase-3 trials. STEP 1 (NEJM 2021) is the most cited: −14.9% body weight at 68 weeks with Semaglutide 2.4 mg vs placebo.