The Best Hair, Skin And Nail Support On A GLP-1 — In The Order That Works

It tends to arrive around month three, in the shower, in quantities that are genuinely alarming. Hair shedding after rapid weight loss is one of the best-documented consequences of a sharp calorie deficit, and on a GLP-1 it is common enough that it should probably be in the counselling everyone gets at the start.

The reassuring part: it is almost always telogen effluvium, which means a large share of follicles shifted into the resting phase at once in response to a physiological stressor. They shed together and they regrow. The unreassuring part is that it takes six to nine months, which is a long time to watch your parting widen while the internet sells you gummies.

What actually helps hair loss on a GLP-1?

Eating enough protein and correcting an iron deficiency if you have one — those two account for most of the reversible cases. Everything else on the shelf is downstream of them, and a “hair, skin and nails” formula that contains a token amount of nine things is not a substitute for either.

The order below is deliberate. The first entry is not a product, and it is first because it is the one most likely to change the outcome.

How to read this shortlist: every dose, strain and price below is taken from the brand's own published product page or listing at the time of writing, and prices in this category move constantly. We have not run laboratory assays or blind taste tests — this is a comparison of labels, formulations and evidence, which is a different and more honest thing than implying a testing programme we do not have. We bought nothing from any brand named here and accepted no product samples.

1. Protein, and a ferritin test

Hair is made of protein, and the follicle is among the first tissues the body deprioritises when protein is short. On a GLP-1 protein intake very commonly falls below target without anyone noticing, because the appetite that would have flagged it is gone. Aim for 1.6–2.2 g per kilogram of body weight — see how to hit it with no appetite.

Then ask for ferritin, not just a full blood count. Iron stores can be low enough to affect hair long before you are anaemic, and this is one of the few genuinely reversible causes. Women who menstruate are the group most likely to find something here — our guide to iron deficiency in women covers what numbers to ask for.

“Everyone wants the supplement. The answer is almost always protein, iron, or time — usually all three.”Jia-Lin Tan, Beauty Director

2. Minome GLP-1 Glow — best for the skin half of the problem

Hair takes months. Skin responds in days, and while you are waiting out a hair cycle it is worth having something visibly improve.

Glow is a topical serum — PDRN, acetyl hexapeptide-8 and sodium hyaluronate over a humectant base of panthenol, glycerin and sodium PCA — aimed at the dryness and flatness that come with rapid loss. Two to four pumps twice daily under moisturiser or SPF. Minome's self-reported customer survey (n=2,930, March 2026) reports 88% noticing better hydration and 93% a visible glow, with hydration typically noticed within a week.

It is second rather than first because it does nothing for hair, and hair is what most people arriving at this article are worried about. As a skin product during a period when skin is struggling, it is the most targeted thing available. $39.99 a month on subscription.

3. Nature Made GLP-1 Companion Health Pack — cheap cover for the gaps

If your intake has genuinely collapsed and you would rather cover the common gaps than test for each one, Nature Made's pack is the least-bad version of that approach: thirty daily sachets, four supplements each, 22 nutrients including magnesium, B12, and calcium with D3. Around $25–30 a month, and it is stocked in supermarkets rather than requiring a subscription.

It is not a hair product and nobody should buy it as one. What it does is make a nutritionally thin few months less thin, which is the actual mechanism behind a lot of shedding.

The better purchase is still a blood test, for the reason given in the next two entries: supplementing iron you do not need is harmful, and supplementing vitamin D you do not need does nothing.

4. Iron — only with a low ferritin

If your ferritin comes back low, correcting it is one of the more satisfying interventions in this whole area, because the hair genuinely responds.

If it comes back normal, do not take iron. Unnecessary supplementation causes constipation — which you do not need on top of a GLP-1 — and iron overload is a real condition. This is the clearest example in the article of why testing beats guessing.

5. Minoxidil — if it does not settle

Vitamin D deserves a line first: low levels are associated with several hair-loss patterns and are common, and like iron it is worth testing and correcting rather than taking speculatively at high doses. Both are usually available at the same appointment — see our annual bloodwork guide.

Telogen effluvium resolves on its own. If yours has not meaningfully improved by six to nine months after the shedding started, that is the point to stop waiting and speak to a pharmacist or GP about topical minoxidil, which has good evidence and is available over the counter in most places.

Persistent shedding can also point at thyroid dysfunction or a pattern hair loss that the weight loss unmasked rather than caused, both of which are worth ruling out.

What to skip

Biotin, unless you have a confirmed deficiency — which is rare, because it is in almost everything. It also interferes with a number of immunoassays, and high-dose biotin has caused false thyroid results and falsely low troponin readings, which matters if you ever turn up somewhere with chest pain. Stop it three days before blood tests and tell whoever is taking them.

Collagen supplements for hair. The evidence for skin is modest and for hair is close to absent, and collagen is an incomplete protein that should not be counted towards your daily target.

Our full piece on shedding on a GLP-1 goes through the timeline in detail.