Every migraine
you don't get is
a day you keep.
In trials, people who took magnesium every day got fewer migraines.
400mg elemental per scoop
Forms your body absorbs
Third-party tested
GMP-certified facility
Neurologists already rate magnesium for migraine.
If you've had migraines for years, you've been offered things. Most of it arrives with a promise it can't keep.
The American Academy of Neurology and the American Headache Society reviewed the trial evidence and rated magnesium “probably effective” for reducing migraine attacks. It's the highest grade they've given any supplement for it.
It isn't something you take when one starts. It's taken every day, whether you feel one coming or not.
Magnesium builds up over time, which is why the trial ran a full twelve weeks, and why we'd say give it a tub before you judge it.
Why magnesium does anything for a migraine
Magnesium isn't a painkiller and doesn't behave like one. It's involved in how nerve cells fire and how blood vessels relax, and both of those are part of what happens during a migraine.
That's why researchers looked at it in the first place. People who get migraines tend to have less magnesium stored in their cells than people who don't.
So there's a real reason behind the
trial results, not just a coincidence.
If your migraines follow your cycle, there’s a study on exactly that.
Researchers have looked at period-related migraines separately. In one trial, women taking magnesium from mid-cycle onwards had fewer headache days than the women on placebo, and their premenstrual symptoms eased alongside it.
Around three in four migraine sufferers are women, and the years either side of menopause are when a lot of women notice their migraines change.
If that sounds like you, this is the study that matters most.
What to expect
Two months, and what each part of it looks like
This is the part most supplements won't tell you, because the honest answer costs them the sale in week two. You don't fix low magnesium in a week. It takes time to build your levels back up, which is why one tub is the smallest fair test.
Weeks 1 to 4
Building your levels
Your levels are still coming up. In the trial both groups looked alike here, and this is where most people stop. It's the one thing the evidence says not to do.
Weeks 5 to 8
Still every day
One scoop in water, whether or not you feel one coming. Levels build slowly rather than jumping. Your tub runs down around the end of this stretch.
Weeks 9 to 12
Where the difference showed up
This is where the magnesium group started doing better than the placebo group. By the end of your first tub you'll have a real read on it.
Made in a GMP-certified facility and third-party tested, batch by batch.
How it's made
Most supplements are made to hit a price, not to work. This one isn't.
It's cheaper to use a small amount of a poorly absorbed form, print a big number on the front, and let the label do the work. That's why so many people take a magnesium for a month, feel nothing, and write off the whole category.
We use the dose the research uses. That costs more to make, and we charge more because of it.
Biosphere Magnesium
- Three forms your body absorbs easily, including magnesium citrate, the form used in both successful migraine trials
- GMP-certified facility, every batch third-party tested
- Naturally sweetened with stevia and monk fruit
93c a serve · two months from one tub
Choose your flavour
The most reviewed magnesium in New Zealand
Available from 150+ NZ stores. Real reviews from real Biosphere customers.
Two months to find out, at our risk.
Take it every day for the full tub. If your migraines are exactly where they were, email us and we'll refund you.
The questions worth asking
How long before I know if it's working?
Give it the full tub, which is about two months of daily use.
In the trial, magnesium and placebo still looked similar after the first month, and the gap opened up in the final stretch. A quiet first month isn't a sign it's failed. If you finish the tub and nothing has shifted, that's a real answer and the guarantee covers you.
I'm already on a preventive from my GP. Can I take this too?
Check with your GP or pharmacist first. Magnesium can interfere with the absorption of some medications, including certain antibiotics and bone medications, which is usually handled by spacing the doses a few hours apart.
Don't stop or change anything you've been prescribed. This sits alongside what you're already doing, not in place of it. If you have reduced kidney function, check before starting.
Morning or night?
Whichever one you'll actually stick to. There's no trial evidence that timing changes the outcome for migraine, and consistency over two months matters far more than the hour.
Take it within an hour of a meal, so there's some food digesting when you have it.
What if it doesn't work for me?
Tell us and we'll refund you. You have 60 days, which covers the tub.
Magnesium works for some people and not others, and there's no way to know which one you are without trying it. We'd rather refund you than have you believe we promised something the research doesn't support.
Two months from now, you'll know either way.
If you're getting fewer migraines, keep going. If nothing has changed, tell us and we'll refund you. That's the whole deal.
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