Label checks · Menopause · GLP-1

Losing Hair on a GLP-1? Not Every Pumpkin Seed Oil Works. We Ranked the 5 Bottles Women Actually Buy, Worst to Best.

About to order your first bottle, or already took one and got nothing? Five questions decide it, and you can check them on the back of the bottle in under a minute.

Ellen Marsh
Ellen Marsh, Beauty & Hair Editor · Last updated 9 Sep 2026 · 9 min read
Five pumpkin seed oil bottles standing in a row on a pink counter, HALO Hair in the middle
Bought at full price, read back to front. Left to right: NOW, Swanson, HALO Hair, Nature's Truth, Solaray.

Five questions. Ask them before you buy, or before you throw one away.

If there's a bottle in your bathroom already, go get it and turn it around. If you're still shopping, open the Amazon listing and scroll to the label photo. Either way, read the back, not the front.

  1. Does the front say prostate or men's health? If it does, it was built for a man's gland, not your hair.
  2. Is it real pumpkin seed oil with an amount printed? 1,000 mg is a full dose. "3,000 mg" usually means three softgels.
  3. Does it print a second amount, for a saw palmetto extract? Or is there no saw palmetto, or the word blend?
  4. Is there anything for the root besides oil? Zinc, selenium, copper, with numbers. No iodine. Biotin under 100 mcg.
  5. Does it tell you what week four looks like, and who takes the bottle back at week twelve?

Count the passes. Keep the number in your head. It comes back at the end.

Skip to the ranking ↓

If you're losing hair on a GLP-1, somebody has told you about pumpkin seed oil by now. A video, a Facebook group, a friend on the same shot. They're not wrong about the plant. They're wrong about the bottle, because most of the bottles sold under that name were never built for a woman's hair.

Here is the sentence that arrives in our inbox, worded almost the same way every time: "I took pumpkin seed oil for my hair and it didn't do anything." Six months, twice a day, nothing. And it's true. It didn't. This page is about why, and it isn't the plant.

"I bought it as a DHT blocker for hair loss. I did not see any use of it, I used for months but no effect at all. I still have hair loss."

NOW Pumpkin Seed Oil 1,000 mg, two-star review, iHerb

What the pharmacist doesn't sayThe shot took the fat. It took something else with it.

After menopause, most of your estrogen comes from your body fat. Not your ovaries anymore. Your fat. Nobody mentions that when they hand you the pen.

Estrogen has one job at the hair root: it's the bouncer. It keeps DHT out. DHT is the hormone that shrinks the roots on top of your head. Only the top. The back doesn't care. That's why the back of your head is still thick and your part keeps getting wider.

Illustration: before the shot, body fat makes estrogen, which stands at the hair root like a bouncer and keeps DHT out; on the shot the fat is gone, the door is open and only the top thins
Before the shot, body fat pays the bouncer. On the shot, the fat goes, the door opens, and only the roots on top pay for it.

The shot takes the fat. So it takes the estrogen. The bouncer leaves, DHT walks in, and every hair on top grows back a little thinner than the one before.

That's why protein didn't help. A shortage thins everywhere. A hormone thins in one place. And it's why plain pumpkin seed oil isn't enough. Keeping DHT off a root is two jobs.

Illustration of three hair roots: with estrogen at the door, on the shot with the door open, and with pumpkin seed oil turning the tap down and saw palmetto at the door
Three roots. The bouncer, the open door, and the two plants doing the two jobs.
Pumpkin seed oil turns the DHT tap down. Saw palmetto extract stands at the door. A bottle with only the oil does half the job. That's the whole page in two sentences.

Check IWho the bottle was made for

Read the front. Two of the four Amazon bottles say Supports Prostate Health or Men's Health. The other two say nothing. None of them say hair.

A prostate formula needs oil and nothing else, so that's what's in it. That isn't a scam. It just isn't for you. Women buy it because a video said "pumpkin seed oil" and the bottle said "pumpkin seed oil," and nobody read the rest.

"This product is intended for use by men and is not intended for use by women."

Nature's Bounty Saw Palmetto, the label itself, Amazon
Look for: a front that says women. If it says prostate, put it back.

Check IIIs the oil real, and is the amount printed?

All four Amazon bottles pass this one. Real oil, 1,000 mg per softgel. That's a full dose: the trial behind pumpkin seed oil used 400 mg a day for twenty-four weeks, with a placebo group, and the men taking it ended up with about 40 percent more hairs counted. Men, and one trial.

Two traps. "3,000 mg" on the front means three softgels a day of the same oil, not a stronger oil. And only one of the five bottles says cold-pressed.

Look for: the word oil, and a number. 1,000 mg is enough. More isn't better. One woman took 2,000 mg a day for nine months and got nothing.

Check IIIDoes it print the second number?

This is the line that decides it

Pumpkin seed oil is the tap. Saw palmetto extract is the door. It only counts with a number next to it. Inside a "proprietary blend" it can be a pinch, and you'll never know.

None of the four Amazon oils have any saw palmetto at all. The eighty-dollar hair supplement does. We checked. It's hidden in a blend with twenty other things, so the one number that matters is the one you can't read.

"Took this for over three months but I didn't see any results or nothing."

NOW Pumpkin Seed Oil, one-star review, Amazon

"12 months of proper use with zero results."

Nutrafol Women, one-star review, Trustpilot
Look for: two numbers on one label. Oil, and extract. One number is half a formula.

Check IVIs there anything in it for the root?

Keeping DHT out is defense. The root still has to build the next hair, and three minerals help it do that: zinc, selenium, copper. An oil-only bottle has none of them.

Just as important is what a woman's bottle leaves out. No iodine, because a lot of us have a slow thyroid after 45. And only a little biotin. The 10,000 mcg gummies can throw off your thyroid blood test, and do this:

"I had the worst acne while using it that immediately disappeared the second I stopped using it."

Nature's Bounty Biotin 10,000 mcg, one-star review, iHerb

"There's way too much vitamin A in these supplements. My hair started falling out in clumps. My doctor tested my vitamin A levels, very high."

Nature's Bounty Hair, Skin & Nails gummies, perimenopausal buyer, Drugs.com
Look for: zinc, selenium and copper with numbers. No iodine. Biotin at 100 mcg, not 10,000.

Check VDid anyone tell you about week four?

A new hair takes five to six weeks to reach the surface, and about twelve to grow long enough to see. Nothing from any bottle shows before then. Some women shed a little more around week four. If nobody warns you, week four looks like failure, and that's the week most bottles get thrown away.

"I've been taking pumpkin seed oil for 4 weeks now and my hair shedding undoubtedly increased since. Could this be a dread shed or a sign it's not a good fit?"

Reddit, women's hair-loss forum, on one of the bottles below

The four Amazon bottles say nothing about timing. They weren't written for hair. And when you give up, Amazon takes back an unopened bottle. Not twelve weeks of your life.

Look for: a timeline printed before you pay, and ninety days to change your mind. Not thirty.

And if you buy the wrong one anyway? Then nothing happens, which is the point. The shot keeps doing what it does. The bottle keeps doing what it does. A year from now you can run it through the same five questions and get the same number, just with a wider part above it.

The rankingFive bottles, worst to best, back label only

We took the five pumpkin seed oil bottles women on a GLP-1 actually buy: the four Amazon bestsellers and the one that was built for this. We read the back of each, scored it on the five checks, then read a few hundred low-star reviews from women who'd taken them. Worst first.

5Swanson Pumpkin Seed Oil bottle

Swanson Pumpkin Seed Oil 1,000 mg

100 softgels · about $9 a bottle · $3 to 5 a month

Passes 1 of 5
  • Front says Men's Health, right under the name
  • Real oil, 1,000 mg printed
  • No saw palmetto
  • No zinc, selenium or copper
  • No timeline. Unopened bottles only

"Softgels are glued. Terrible to take them out of the container. So every day now I'll have to perform a surgery."

One-star review, iHerb

Verdict. The cheapest oil on the list, and the only one honest enough to print who it's for. It just isn't you.

4NOW Pumpkin Seed Oil bottle

NOW Pumpkin Seed Oil 1,000 mg

100 softgels · about $14 a bottle · $4 to 8 a month

Passes 1 of 5
  • Front says Supports Prostate Health
  • Real oil, 1,000 mg printed, hexane-free
  • No saw palmetto
  • No zinc, selenium or copper
  • No timeline. Unopened bottles only

"I bought the NOW brand at two different stores in town weeks apart and both bottles had a terrible rancid odor."

Review on Amazon

Verdict. The one most women already own, from a company that's been doing this for decades. Good oil, half the job, and a prostate label. The woman who panicked at week four above was taking this one.

Skip to number 1 ↓
3Nature's Truth Pumpkin Seed Oil bottle

Nature's Truth Pumpkin Seed Oil 3,000 mg

100 softgels · about $12 a bottle · about $11 a month at three a day

Passes 2 of 5
  • Nothing for men on the front. Nothing about who it's for either
  • Real oil, 1,000 mg per softgel printed. "3,000 mg" is three a day
  • No saw palmetto
  • No zinc, selenium or copper
  • No timeline. Unopened bottles only

"It says 3,000 mg per serving then in the back says 1,000 per each pill so you have to take 3 per day. It doesn't even last you a month."

One-star review, iHerb

Verdict. The big number on the front is a serving size, not a stronger oil. Three pills a day of half a formula, and the bottle is gone in a month.

2Solaray Pumpkin Seed Oil bottle

Solaray Pumpkin Seed Oil 1,000 mg

100 softgels · about $19 a bottle · $6 to 11 a month

Passes 2 of 5
  • Nothing for men on the front. "Lab verified" is the only claim
  • Real oil, 1,000 mg printed, and the lab stamp says you're getting it
  • No saw palmetto
  • No zinc, selenium or copper
  • No timeline. Unopened bottles only

Verdict. The best of the plain oils, and the one we'd buy if all we wanted was the oil. That's also all you're getting. Buy it knowing it's half.

1HALO Hair bottle

HALO Hair

60 softgels, two a day · costs more per bottle · buy two, the third is free

Passes 5 of 5
  • Front says who it's for: women 45+, thinning at the part and crown
  • 1,000 mg cold-pressed pumpkin seed oil, printed
  • 320 mg standardized saw palmetto extract, printed. The second number
  • Zinc 10 mg, selenium 55 mcg, copper 1 mg. Biotin 100 mcg. No iodine. No blend
  • Timeline printed before you pay. 90-day money back
  • Two softgels a day, not one. And the most expensive per bottle on this page

"They tell you upfront that nothing happens for five weeks, and it didn't, so I didn't toss it at week four like I have with every other thing I've bought. My hair tie went from four turns to three."

Deb H., 49, three months in

Verdict. The only bottle of the five made for the person buying it, and the only one with the door as well as the tap. Where the others win, they win clearly: price, by a mile, and one softgel instead of two. If you've already tried pumpkin seed oil and it did nothing, this is the one to try before you give up on the idea.

Get number one, buy 2 get 1 free →

Full label, every amount printed. 90-day money back, free US shipping.

One note on the eighty-dollar hair supplement that isn't on this list because it isn't a pumpkin seed oil bottle. It is made for women, and it does contain saw palmetto. It just won't tell you how much, four pills a day, and the women writing its one-star reviews say the same two things: nothing after a year, and shedding that got worse.

"I took it consistently for 9 months. It did the exact opposite. My hair shed more and more the longer I used it."

Nutrafol, one-star review, Trustpilot
The back of the HALO Hair bottle with every amount printed
The back of number one. Two plants with two numbers, three minerals with three, biotin at 100 mcg, no iodine, no blend.

What to do nowYour bottle probably got one or two. Here's why that's fine.

Most bottles in most bathrooms score one or two out of five. Not because you chose badly, but because nobody handed you the five questions before you bought. Now you have them. And if you haven't bought a bottle yet, you just saved yourself six months.

One honest thing before the link. Number one only works if you take it for twelve weeks, two with breakfast, without skipping. The first four weeks look like nothing. If you'd throw it away at week four, don't buy it. Keep the money.

Compare the two labels side by side

Opens the full label of number one, every amount printed.

The money, in three lines. It costs more per bottle than the Amazon oil. Buy two and the third is free. Ninety days to decide, and if the part hasn't changed, they take the bottles back.

Watch the part, not the drain.

Week nine: short hairs along the line, standing up when you pull the rest back. That's what working looks like. The drain calms down on its own around then anyway. The part doesn't.

Three HALO Hair bottles
Buy two, the third is free. Ninety days to decide. Nothing in it is a hormone.
Read the full ingredient list

Or you close this and take tomorrow's shot like you took today's. That's allowed. The bottle in the bathroom empties a little, you buy the same one again, and the question you had thirty seconds ago goes quiet. Not answered. Quiet.

But you did the part most women skip. You turned the bottle around, or you read the label before you paid. You counted. There's a small group of women on these medications who read the back of everything they take alongside them, the same way they read the back of the pen. You've been one of them for the last nine minutes.

Keep the shot. Keep the weight. Put somebody back on the door.

Check the three-bottle price

One bottle available too, no subscription, 90-day money back.

Not for: hair coming out evenly all over rather than at the part and crown; a blood test that says low iron or thyroid (fix that first); a history of hormone-sensitive cancer or prescription medication without asking your doctor about saw palmetto. Keep eating your protein on the shot. It protects your muscle. It was just never hair advice.