OstinInjection site rotation
Tap where you injected last time to see where to go next.
Untick sites you don't use. Rotation goes around the sites in order, so each one gets a rest.
Where GLP-1 shots go
Semaglutide and tirzepatide are injected under the skin of the abdomen, the front of the thigh, or the back of the upper arm (the arm is usually easier when someone else gives the shot). Check the instructions for your medication.
Rotating sites
- Use a different spot each time, even within the same area: at least about an inch (2–3 cm) from the last one.
- On the abdomen, stay about 2 inches (5 cm) away from the belly button.
- Skip skin that is bruised, tender, scarred, red or hard.
- Rotating helps avoid lumps under the skin (lipohypertrophy), which can affect how the medicine is absorbed.
Keeping track
It's easy to forget which side you used last week. Writing it down, or letting an app suggest the next site, keeps the rotation even.
Let your iPhone keep track
Ostin tracks your shots, dose steps, supply, protein and site rotation, and reminds you on shot day. No account, no subscription.
Join the free betaFor iPhone, through Apple's TestFlight app; spots are limited.
More tools: Units to mg · Vial calculator · Protein goal