Best Weight Loss Peptides in 2026: Complete Ranking

Comparing retatrutide, tirzepatide, semaglutide, CagriSema, and more. Which peptide is right for you?

Ranking: Best to Worst by Weight Loss Effectiveness

  1. Retatrutide (24-28.7% weight loss)
    Triple agonist (GLP-1/GIP/Glucagon). Best results but not available until 2027-2028. Clinical trials only.
    Status: Phase 3 trials
  2. Tirzepatide (15-22.5% weight loss)
    Dual agonist (GLP-1/GIP). Best CURRENTLY available option. $179-499/month compounded.
    Status: FDA approved, available now
  3. CagriSema (15-20% weight loss estimated)
    Dual agonist (Amylin + GLP-1). Novo Nordisk's answer to tirzepatide. Not available yet.
    Status: Phase 3 trials, expected 2027
  4. Survodutide (15-19% weight loss)
    Dual agonist (GLP-1/Glucagon). Boehringer Ingelheim. Similar to tirzepatide but years away.
    Status: Phase 3 trials, expected 2028+
  5. Semaglutide (10-15% weight loss)
    Single agonist (GLP-1). Proven, safe, 5+ years real-world use. $179-349/month compounded.
    Status: FDA approved, available now
  6. Orforglipron (8-15% weight loss)
    Oral GLP-1 pill. Convenient (no injections) but less effective than injectable peptides.
    Status: Phase 3 trials, expected 2028

Best Overall: Tirzepatide (Available Now)

Why tirzepatide wins:

Best Future Option: Retatrutide (2027-2028)

If you can wait 1-2 years, retatrutide will likely be the most effective option. But most people should start tirzepatide NOW and switch later if needed.

Start the Best Available Peptide Today

Tirzepatide: 15-22.5% weight loss, available now, $179/month

Start with MEDVi →
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Medical Disclaimer: This article is for informational purposes only and does not provide medical advice. GLP-1 medications require a prescription and should be used only under the guidance of a licensed healthcare professional. Always consult your doctor before starting any weight loss medication to ensure it is safe for your specific health history.