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Science · 10 min read

Semaglutide vs. Tirzepatide: what's the difference?

By Dr. Ada Okafor · Jan 2026

Both semaglutide and tirzepatide are once-weekly injections, but tirzepatide adds a second mechanism (GIP) alongside GLP-1.

What the research shows

For some patients that dual action delivers greater results; for others, semaglutide is the right — and more affordable — fit. Your provider decides with you.

  • Steady, sustainable change beats crash approaches.
  • Your provider tailors the plan to your body and history.
  • Support and check-ins make results stick.
The goal isn't a quick fix - it's a plan you can actually live with.

Every Happy plan is reviewed by a board-certified provider, so your treatment reflects your health, not a one-size-fits-all template. This article is educational and not a substitute for medical advice.

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