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Semaglutide

Weight Loss

$71.99$65.88

Semaglutide

Semaglutide is a long-acting GLP-1 (glucagon-like peptide-1) receptor agonist that mimics the body’s natural incretin hormones. It enhances insulin secretion, suppresses glucagon release, and slows gastric emptying, resulting in improved blood sugar control and steady weight reduction.


Because of its proven ability to regulate appetite and metabolism, Semaglutide is one of the most advanced peptides for weight management and metabolic health.

By improving insulin sensitivity and reducing appetite, Semaglutide promotes consistent fat loss, stable blood sugar levels, and long-term metabolic balance. Research also highlights benefits in cardiovascular function, energy regulation, and body composition optimization.


Form & Stability

All Peptide Labs peptides are produced with 99%+ purity and lyophilized to preserve potency and stability.

  • Unmixed (Freeze-Dried): Stable for up to 1 year in the refrigerator (2–8°C / 36–46°F) and over 5 years in the freezer (−20°C / −4°F).

  • After Reconstitution: Store in the refrigerator (2–8°C / 36–46°F) and use within 30 days for optimal results.


Research Overview

1. GLP-1 Receptor Activation

Semaglutide binds to and activates GLP-1 receptors, enhancing insulin release in response to high blood glucose. This mechanism promotes improved glycemic control, reduces glucagon secretion, and maintains steady blood sugar throughout the day.

2. Weight Loss & Appetite Suppression

Clinical research shows that Semaglutide leads to significant and sustained weight loss by reducing appetite, slowing gastric emptying, and improving fat oxidation.
In studies, participants experienced an average 15–17% body weight reduction, making it one of the most effective peptides for weight management.

3. Metabolic Health & Insulin Sensitivity

Semaglutide improves insulin sensitivity, lowers fasting glucose levels, and helps reduce visceral fat. This supports long-term metabolic health and helps prevent insulin resistance.

4. Cardiovascular & Lipid Support

Research indicates Semaglutide may help reduce LDL cholesterol and triglycerides, while improving lipid balance — supporting a healthier cardiovascular system and overall metabolic function.

5. Energy Regulation & Appetite Control

By acting on the brain’s appetite centers, Semaglutide helps reduce hunger and stabilize cravings, leading to more consistent energy levels throughout the day. Users often report improved mood, energy, and endurance as their metabolism adapts.

6. Body Composition Enhancement

Beyond fat loss, Semaglutide helps preserve lean muscle mass during weight reduction, maintaining strength and metabolism while improving physical composition and endurance.


Molecular Structure

  • Sequence: His-Ala-Glu-Gly-Thr-Phe-Thr-Ser-Asp-Val-Ser-Ser-Tyr-Leu-Glu-Gly-Gln-Ala-Ala-Lys-Glu-Phe-Ile-Ala-Trp-Leu-Met-Asp-Lys-Thr-Glu-Glu-Gln-Glu-Ala-Ala-Lys-Glu-Phe

  • Molecular Formula: C₂₀₁H₃₁₆N₅₀O₆₁

  • Molecular Weight: 4113.58 g/mol

  • Form: Lyophilized (freeze-dried) powder for maximum stability

Storage & Stability Instructions 

All Peptide Labs products are manufactured using a lyophilization (freeze-drying) process to ensure maximum stability and purity. This method allows peptides to remain 100% stable for up to 3–4 months during shipping and storage at room temperature.

Once reconstituted (mixed with bacteriostatic water), peptides must be stored in the refrigerator to maintain potency and freshness. After reconstitution, peptides remain stable for up to 30 days when properly refrigerated.

What is Lyophilization?


Lyophilization is a specialized dehydration technique where peptides are frozen and exposed to low pressure, causing water to sublimate directly from solid to vapor. This process leaves behind a stable, crystalline white powder that preserves the integrity of the peptide until it’s mixed with bacteriostatic water.

Short-Term Storage:

  • Store at room temperature if used within a few weeks.

  • Keep peptides cool, dry, and protected from light.

  • For short-term storage (days to weeks), refrigeration at under 4 °C (39 °F) is recommended.

Long-Term Storage:
For longer preservation (several months to years), store peptides in a freezer at −80 °C (−112 °F). This ensures maximum stability and prevents degradation over time. (DO NOT RECONSTITUTE)