What Is a Peptide?
A peptide is a short chain of amino acids, the molecular building blocks of proteins. In the human body, peptides function as:
- Hormones
- Enzymes
- Signal molecules
GLP-1 itself is a peptide hormone released by the gut in response to food intake, promoting insulin release, appetite suppression, and glucose regulation ¹.
Is Semaglutide a Peptide?
Yes. Semaglutide is a modified peptide with 31 amino acids, 94% identical to human GLP-1. However, it is engineered with key changes:
- Acylation (adding a fatty acid chain) to enable albumin binding
- Substitution of certain amino acids to resist DPP-4 enzyme degradation
- Structural stability supporting a half-life of ~160 hours ¹²
These properties allow for weekly injections (Ozempic®, Wegovy®) or daily oral use (Rybelsus®).
{{primary-cta}}
How Semaglutide Works
Semaglutide activates GLP-1 receptors in the:
- Pancreas - boosts glucose-dependent insulin
- Liver - reduces glucagon
- Stomach - slows gastric emptying
- Brain - reduces appetite and cravings
Its peptide structure is vital for binding these receptors effectively ².
Semaglutide Formulations
All semaglutide versions use the same peptide base, differing only by format:
- Ozempic® – Weekly injection for type 2 diabetes
- Wegovy® – Weekly injection for weight management
- Rybelsus® – Daily oral tablet for type 2 diabetes
Each delivers semaglutide systemically, providing consistent effects on insulin, appetite, and glucose control ¹.
Why Peptide Structure Matters
Semaglutide’s peptide design enables:
- Selective GLP-1 receptor activation
- Predictable pharmacokinetics
- Extended half-life without daily injections
- Albumin binding, which buffers breakdown
These structural features make semaglutide more effective and longer-acting than earlier GLP-1 agonists ².
How It Compares to Other GLP-1s
In head-to-head comparisons, semaglutide has:
- Greater A1C and weight reduction
- Longer duration of action
Its unique peptide engineering gives it an edge in both efficacy and convenience ².
{{primary-cta}}
Why Eden Patients Choose Semaglutide
Eden offers:
- Access to licensed GLP-1 providers
- Prescriptions for FDA-approved semaglutide only
- Transparent, flat-rate pricing
- Support for injection technique, lifestyle change, and side effect guidance
Final Thoughts
Is semaglutide a peptide? Yes, and that’s the foundation of how it works. Its engineered peptide structure is what enables powerful, long-acting effects for glucose control, appetite suppression, and weight loss ¹².
Eden helps you access this care with confidence, from initial consult to ongoing support upon eligibility.
Disclaimer
This article is for educational use only. Always consult a licensed provider before starting semaglutide. Eden prescribes only FDA-approved GLP-1 medications under physician supervision.