You finally lost the weight. Don't lose your hair too.

A certified scalp specialist on why it happens, whether it grows back, and the five supplements worth knowing.

You did the hard thing. The weight finally came off. Then, around the third month, your hair started going with it. More in the shower drain, a ponytail that wraps an extra turn, more scalp in the mirror.

The worry is fair, and you're far from alone. Shedding after Ozempic, Wegovy or Zepbound is common enough to have a name, and fixable once you understand it.

It isn't the drug poisoning your hair

It's the speed. When you eat far less and lose fast, your body feeds the organs that keep you alive first and treats your hair as optional. Here's the sequence:

• 01You eat less. Appetite all but disappears, so protein and key nutrients drop alongside the weight.
• 02The follicle goes quiet. Starved of what it needs, hair shifts early into its resting phase.
• 03Two to three months later, it sheds. That is why the timing feels so cruel, and so sudden.

Doctors call it telogen effluvium, the same shedding people see after surgery or a crash diet. The follicle is starved, not damaged, so when you feed it back what the rapid loss drained, the hair returns.

You don't have to choose between the weight and your hair. You just have to feed your hair through the change.

Three things actually help

Most of what helps is simple, and only the last piece is something you buy.

• Eat more protein than feels comfortable. Hair is mostly protein, and it's the first thing your body runs short on when you're barely eating.
• Lose it a little slower if you can. The faster the weight drops, the harder your hair takes the hit.
• Refill what's missing, every day. When you're eating this little, food alone rarely puts back the vitamins and minerals your hair is built from. That's the gap a complete daily vitamin fills, not a scalp serum, and not biotin on its own.

And waiting costs you. While the weight is still dropping, this doesn't settle on its own. Every week your hair goes unfed, a little more of it slips into the shedding phase and takes longer to come back.

The hair you have today is the most you'll ever have to work with. The window is while you're still losing, not after.

The five, judged on what actually matters on a GLP-1

Not every supplement is built for someone eating a fraction of what they used to. The bar: complete enough to refill what rapid loss drains, easy to take on no appetite, and affordable enough to stay on for ninety days. Here's how the best-known options compare.

Swipe to compare all five →

Rated on fit for a GLP-1 routine: a complete blend, gentle on a low appetite, and affordable enough to stay on for ninety days.

Weight-loss shedding (telogen effluvium) usually eases as your weight steadies and your eating evens out; shedding that continues past about six months is worth checking with your doctor. The information here and the products mentioned are not intended to treat, diagnose, cure or prevent any disease. Results may vary. This is not medical advice.