Use Case Guide

Peptides for Weight Loss

GLP-1 receptor agonists and metabolic peptides that support weight management through appetite regulation and improved metabolism.

Last updated: January 202610 min read

Peptides for Weight Loss

How Weight Loss Peptides Work

Weight loss peptides have revolutionized obesity treatment. GLP-1 receptor agonists like semaglutide and tirzepatide work by mimicking natural hormones that regulate appetite and blood sugar, helping patients achieve significant, sustained weight loss.

Mechanism of Action

These peptides activate receptors in the brain that control hunger and satiety. They slow gastric emptying, making you feel full longer, and improve insulin sensitivity. The result is reduced caloric intake without constant hunger.

Important Considerations

Before You Start

  • GLP-1 agonists require ongoing use to maintain weight loss
  • Common side effects include nausea, especially during dose escalation
  • Compounded semaglutide/tirzepatide is no longer legal since shortage resolution
  • Brand-name versions (Ozempic, Wegovy, Mounjaro) cost $900-1,400/month without insurance

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Frequently Asked Questions

Which peptide is best for weight loss?

Tirzepatide (Mounjaro/Zepbound) shows the highest weight loss in clinical trials at 20-22%, followed by semaglutide (Wegovy) at 15-17%. Retatrutide, still in trials, has shown up to 24% weight loss but is not yet FDA-approved.

Can I still get compounded semaglutide for weight loss?

No. The FDA declared the semaglutide shortage resolved in February 2025, making compounding illegal. You must now use brand-name Ozempic or Wegovy, which require a prescription and cost $900-1,300/month without insurance.

How long does it take to see weight loss results from peptides?

Most patients notice appetite changes within the first week. Measurable weight loss typically begins within 2-4 weeks. Clinical trials show maximum results around 68-72 weeks of continuous treatment.

Are weight loss peptides safe long-term?

GLP-1 agonists have been studied for several years with acceptable safety profiles. The SELECT trial showed cardiovascular benefits with semaglutide. However, they carry a boxed warning about thyroid tumors (based on rodent studies) and pancreatitis risk.

What happens when you stop taking weight loss peptides?

Weight regain typically begins upon discontinuation. Studies show patients regain 6-7% of body weight within one year of stopping. These medications are designed for chronic use, similar to blood pressure medications.

How do I find a provider for weight loss peptides?

Look for providers with proper medical credentials who use verified pharmacy sources. Telehealth clinics can prescribe brand-name GLP-1s with proper evaluation. Our directory lists verified providers who offer weight loss peptide therapy.

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This website is for informational purposes only and does not constitute medical advice. Consult a licensed physician before using any peptides. Provider listings do not constitute endorsements. None of the statements on this site have been evaluated by the FDA.