Two Meresa semaglutide injection pens

GLP-1 pen · once weekly

Your weight loss breakthrough is here.

MERESA (semaglutide injection) is designed to make weekly dosing feel less intimidating and more approachable.

Explore Meresa
Once weekly
Dosing schedule
Clinician-guided
Dose adjustments over time
Online care
Where available

Why Meresa

Weight loss designed around you.

Meresa is a GLP-1 injected once per week, working with your body's appetite signals and a structured plan from Fits clinicians.

How Meresa supports progress

GLP-1 medications like Meresa mimic hormones that help regulate appetite and blood sugar, allowing individuals to feel satiated and satisfied for longer periods of time when combined with changes in eating and activity.

With Fits, weekly Meresa injections are paired with clinician-guided dose adjustments, so your treatment can be slowed down or stepped up based on how you feel and how your body responds over time.

Meresa is meant to be one part of a broader plan: nutrition habits, movement you can stick with, sleep, and ongoing check-ins that help keep weight loss sustainable rather than a short-term sprint.

Person using the Meresa GLP-1 injection pen

Meresa is taken once a week on the same day, with dose changes guided by your Fits clinician over time.