Blog
What are weight loss peptides?
What are weight loss peptides?
Peptides are chains of amino acids that are essential for metabolism, wound repair, inflammation control, and innumerable other biochemical processes.6 They occur naturally but can also be synthesized in a lab to resemble the ones in your body. Those synthetic variants are called therapeutic peptides because they serve specific healing purposes, such as weight loss.
Weight loss peptides fulfill their purpose by mimicking the hormones responsible for regulating your appetite and metabolizing fat. How they go about their mimicry depends on what category of peptides they belong to.
In the following subsections, we discuss three peptide categories that are known to induce weight loss. In each case, your weight loss depends on continued compliance with therapy, so the weight may return after you stop treatment.
Glucagon-like peptide-1 receptor agonists (GLP-1 RAs)
Semaglutide and tirzepatide are examples of GLP-1 RAs, a category of peptides originally developed for diabetes management but found to promote weight loss through their actions on the pancreas and digestion. The “GLP-1” part of the name refers to a naturally occurring hormone in the gut that participates in a broad array of physiological functions.
How Do Weight Loss Peptides Work?
Peptides act as signaling molecules in the body. When used for weight loss, they typically work by:
✔️ Reducing appetite
✔️ Increasing feelings of fullness
✔️ Improving insulin sensitivity
✔️ Slowing stomach emptying
✔️ Supporting fat metabolism
Weight loss peptides are short chains of amino acids designed to influence hormones and biological processes involved in metabolism, appetite regulation, fat burning, and blood sugar control. Some of these peptides are naturally occurring in the body, while others are synthetic versions used in medical treatments.
In recent years, weight loss peptides have gained attention because certain medications that support fat loss are peptide-based therapies.
Common Weight Loss Peptides
Here are some of the most well-known peptide-based treatments used for weight management:
1. Semaglutide
A GLP-1 receptor agonist that mimics a hormone called glucagon-like peptide-1 (GLP-1). It helps reduce appetite and regulate blood sugar. It is used for both type 2 diabetes and chronic weight management.
2. Tirzepatide
A dual GIP and GLP-1 receptor agonist that enhances insulin response and significantly reduces appetite. It has shown substantial weight loss results in clinical trials.
3. CJC-1295
A growth hormone–releasing hormone (GHRH) analog sometimes marketed for fat loss and muscle preservation, though it is not FDA-approved for weight loss.
4. AOD-9604
A modified fragment of human growth hormone studied for fat metabolism effects.
How the best weight loss peptides compare
Before we get into the finer scientific details, take a look at this table comparing our three recommendations across key characteristics:
| Tirzepatide | Semaglutide | Tesamorelin | |
|---|---|---|---|
| Peptide category | GLP-1 + GIP-1 receptor agonist | GLP-1 receptor agonist | Growth hormone secretagogue |
| FDA-approved application(s) | Type 2 diabetes and chronic weight management | Type 2 diabetes and chronic weight management | Abdominal fat reduction in patients with HIV |
| Weight loss efficacy | Most effective | Highly effective | Moderately effective |
| Risk profile | Low | Low | Moderate |
| Online availability | Moderate | High | Low |
Moment announces its first accessories for mirrorless
