Tirzepatide vs Semaglutide: Which is Better for Weight Loss?

Both Semaglutide and Tirzepatide are injectable GLP-1 medications for weight loss, but they have key differences.

Mechanism of Action

Semaglutide is a pure GLP-1 receptor agonist. Tirzepatide is a dual GIP/GLP-1 receptor agonist — it targets two hormone pathways simultaneously, which may explain its superior results.

Clinical Results Comparison

Semaglutide (STEP 1): Average 14.9% body weight loss over 68 weeks.

Tirzepatide (SURMOUNT-1): Average 22.5% body weight loss at the highest dose over 72 weeks.

Which Should You Choose?

Your provider will recommend the best option based on your health history, weight loss goals, and insurance coverage. Both are excellent choices — the best medication is the one that works for YOUR body.