What the trials measured
The trials measured weight, waist, body composition and side effects, not skin. Average losses were 14.9% on Wegovy and 15 to 21% on Zepbound,[1][2] and some people lost far more.
What generally affects it
From general experience with large weight loss, including after bariatric surgery, the amount of weight lost, age, genetics, sun damage and smoking history all seem to matter. These are general observations, not GLP-1 trial findings, and we found no good evidence that creams, supplements or a particular speed of loss prevent loose skin. Surgery to remove excess skin is a separate conversation with a plastic surgeon, usually once weight has been stable for a while.
"Ozempic face"
The hollow-cheeked look that the media call "Ozempic face" is fat loss in the face, the same thing that happens with weight loss from any cause. The muscle and Ozempic face page covers it.
The short version
Short on the way. A 35-second captioned version of this page is in production for the Fewer Bites channel. It will be embedded here when it is live.
Questions to bring to your prescriber
Print these or screenshot them. They are conversation starters, not a checklist of things to do.
- Is there anything about my health (smoking, sun exposure, diabetes) that affects skin healing?
- When would it be reasonable to talk about skin surgery, if it comes to that?
Education, not advice. This page explains what trials, labels and guidelines report. It does not tell anyone to start, change or stop a medicine. Your prescriber knows your history; this page does not.
Sources
- Novo Nordisk / FDA. Wegovy (semaglutide) injection and tablets, prescribing information, revised 06/2026. label
- Eli Lilly / FDA. Zepbound (tirzepatide) prescribing information, revised 08/2026. label