Best GLP-1 for Weight Loss: The 2026 Rankings

By weight loss percentage, by cost, by safety record, and by overall fit — our complete 2026 GLP-1 rankings.

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By Average Weight Loss

  1. Retatrutide (pipeline) — ~24% in Phase 2. Not yet approved.
  2. Zepbound / tirzepatide — ~21% (SURMOUNT-1)
  3. Mounjaro — ~22% off-label (same drug)
  4. Wegovy / semaglutide — ~15% (STEP-1)
  5. Ozempic — ~13-15% off-label
  6. Saxenda / liraglutide — ~5-8%

By Cost (Cash-Pay Without Insurance)

  1. Compounded semaglutide — $179/mo all-in via online providers
  2. Compounded tirzepatide — $249/mo
  3. Zepbound vials via LillyDirect — $349/mo
  4. Generic liraglutide — ~$450/mo
  5. Branded Wegovy/Zepbound — $1,069-1,349/mo

By Insurance Coverage

  1. Ozempic (best diabetes coverage)
  2. Wegovy (improving weight-loss coverage)
  3. Mounjaro (good T2D coverage)
  4. Zepbound (newer; varying coverage)
  5. Saxenda/Victoza (older; widely covered)

By Use Case

GoalBest Choice
Maximum weight lossTirzepatide (Zepbound)
Cheapest pathCompounded semaglutide ($179/mo)
Established CV diseaseWegovy (SELECT trial)
Sleep apnea + obesityZepbound (2024 indication)
Type 2 diabetesOzempic or Mounjaro
Oral preferenceRybelsus (now); orforglipron (2026)
Thyroid cancer historyNon-GLP-1: Contrave or Qsymia

Frequently Asked Questions

What is the strongest GLP-1?
Tirzepatide (Mounjaro/Zepbound) at ~21-22% body weight loss. Pipeline drug retatrutide showed ~24% in Phase 2 — strongest of all once approved (~2026).
Best online GLP-1 program?
For cash-pay value: compounded semaglutide via licensed online providers ($179/mo). For insurance + branded drug: Mochi Health, Ro Body Program, or your existing doctor.
Best GLP-1 for weight loss with insurance?
Wegovy or Zepbound — whichever your formulary prefers. Both are FDA-approved for weight loss with strong trial data. Copays typically $25-100/mo when covered.