How to stop GLP-1 hair loss
You are dealing with a symptom and want to know if it is expected.
Reference and calculator, not medical advice. This page explains how something works; it does not tell you what to take. Last reviewed August 2026.
Two levers get suggested for this, and they are worth separating because only one of them has any numbers attached. Dose is the one with numbers. Everything else — supplements, topicals, shampoos — has none in any of the seven labels.
The clearest number in any of the labels
Wegovy trials, women only, same measurement across three arms. Rate rises with dose while the label attributes the effect to weight reduction rather than to the drug.
Men in the same trials: 0% · 0% · 0.2%. The sex difference is larger than the dose difference, which is the part almost no summary of this topic mentions.
Why the women’s figure for 2.4 mg differs from the table above: these three arms come from the 7.2 mg trial programme, while the other figure is pooled from three earlier weight-management trials. Both are in the label and both report 3.3% overall at 2.4 mg — the sex split differs because the trial populations do. Both are shown rather than picking the more striking one.
Reported rates track dose in the Wegovy trials: 1.0% on placebo, 3.3% at 2.4 mg, 5.8% at 7.2 mg. That is the only intervention-shaped variable in the published data that moves with this reaction. It is also the variable that determines whether the treatment does what you started it for, which is why it is not a knob to turn on your own.
What each label actually reports
Incidence figures come from the adverse-reaction sections of the prescribing information. The two weight-management products report trial data; the diabetes products list alopecia only as a postmarketing report.
| Product | Reported in | Women | Men |
|---|---|---|---|
| Wegovy Semaglutide | Clinical trials | 4% | 0.9% |
| Zepbound Tirzepatide | Clinical trials | 7.1% | 0.5% |
| Ozempic Semaglutide | Postmarketing reports only | no denominator | no denominator |
| Mounjaro Tirzepatide | Postmarketing reports only | no denominator | no denominator |
| Rybelsus Semaglutide (oral) | Postmarketing reports only | no denominator | no denominator |
| Saxenda Liraglutide | Postmarketing reports only | no denominator | no denominator |
| Trulicity Dulaglutide | Postmarketing reports only | no denominator | no denominator |
A postmarketing entry means the reaction has been reported after approval but the label gives no rate, because spontaneous reports have no denominator. It is not evidence that the rate is lower — only that it was not measured. Every figure above is checked against the label linked at the foot of this page.
Worth being precise about what the dose data does and does not show. It shows the reported rate differs between dose groups. It does not show that an individual who moves from a higher dose to a lower one experiences less shedding, because no trial tested that. Those are different claims and only the first is supported.
Common questions
- Is there a proven treatment?
- Nothing in any of the labelling. That is the complete answer from the source documents, and this site does not go beyond them on a question like this.
- What is worth doing today?
- Getting the checkable causes checked — thyroid, iron, and a look at anything else you take. It converts an anxious guess into an answer, whichever way it comes back.
- Does it matter which product I am on?
- The two weight-management products are the two with trial figures. The diabetes products list alopecia as a postmarketing report with no rate. That is a difference in how it was measured, not proof of a difference in how often it happens.
Sources and last review
This page is general reference rather than a dosing table, so it quotes no figures from a label. Nothing here is reviewed by a clinician, and this site does not employ one — which is exactly why what I do publish stays traceable to its source.
- This page carries no product-specific dosing figures. The labels behind everything on this site are listed on the sources page, and the originals live on DailyMed.
Transcribed from the labels above and checked by me — Gavin, who builds this site, takes a GLP-1, and is not a clinician. Last reviewed August 2026. Found an error? [email protected] — I treat corrections as bugs. How this site is built and funded.
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