I’ve been taking Jigsaw’s MagPure Glycinate most nights for more than six months, which means I’ve repurchased it. That’s the only review credential that matters much: I spent my own money on the second bottle.
This is one person’s experience with one product, so treat it accordingly. The glycinate guide covers what the research says about the form in general, and that’s the more important page if you’re still deciding whether to bother at all.
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What’s in it
Magnesium bisglycinate chelate from Albion Labs, at 50mg of elemental magnesium per capsule. Serving size is one capsule, 120 per bottle.
The other ingredients are a vegetable capsule and vegan l-leucine as an anti-caking agent. That’s the whole list, which is the main reason I bought it. Plenty of glycinate products pad the formula with cheap magnesium oxide to lift the elemental number on the label, and this one doesn’t.
What it costs
US$29.97 for 120 capsules. Jigsaw price in US dollars, which at the time of writing is roughly A$42 a bottle before postage. At one a day that’s about 36 Australian cents a day and four months a bottle, still one of the cheaper things in my cupboard on a per-day basis. For comparison, the Brain Boost I also take works out near A$2.85 a day.
If you’re buying from Australia, this ships from the United States, so add postage and a couple of weeks to everything above. There are cheaper bisglycinates available locally, and the glycinate guide covers what to look for if that’s the way you’d rather go.
What I noticed
I take it about an hour before bed and I think I fall asleep more easily than I used to.
Being straight about the size of that claim: I can’t separate the magnesium from the wind-down hour it belongs to, and that hour would probably do me good whatever was in the capsule. The sleep evidence points the same way, with the best trial data showing people falling asleep around 17 minutes faster and total sleep time not improving significantly.
I’ve kept doing it for six months without being able to prove the capsule is the reason. Anyone telling you otherwise about their own experience is overreaching.
It has never upset my stomach, which is the thing glycinate is supposed to be good for and the reason people switch to it from citrate or oxide.
The catch: 50mg is a low dose
I have no real complaints about the product, which is a suspicious thing to read in a review, so here’s the catch.
50mg per capsule is a low dose. Adult magnesium needs run to a few hundred milligrams a day from all sources, so one capsule is a modest top-up rather than a full day’s supply. If you want a larger supplemental dose you’ll be taking two or three capsules, and the maths changes: at three a day the bottle lasts 40 days and the cost triples to about 75 cents a day.
Jigsaw are up front about the dose on the label, so this isn’t a trick. But if you’re comparing against a product delivering 200mg in one capsule, compare the cost per milligram, not per capsule. That’s the buying guide’s whole point and it applies to the thing I use as much as anything else.
Who it suits
It makes sense if you want a clean, single-form glycinate with a short ingredient list and you’re taking magnesium for sleep or general topping-up. It’s a good default and I’d buy it again, which I have.
It makes less sense if you want a high dose in a single capsule.
Disclosure: the links below are affiliate links. If you buy through one I may earn a small commission, at no extra cost to you. It never changes what I recommend.
Sleep and stress
Jigsaw Health
MagPure Glycinate
The glycinate I take myself, about an hour before bed. Albion bisglycinate chelate, and the ingredient list is just the capsule and an anti-caking agent.
- Elemental magnesium50 mg per capsule
- PriceUS$29.97 for 120 capsules (roughly A$42 a bottle, about A36c a day)
Australian dollar figures are approximate, converted at US$1 = A$1.42 (checked August 2026), and exclude international postage.
I already did. That’s not a strong endorsement of magnesium generally, because the evidence for what it does is modest and this site says so repeatedly. It’s a statement that if I’m going to take glycinate, this is the bottle I’m happy paying for.
Sources: NIH Office of Dietary Supplements: Magnesium Fact Sheet (https://ods.od.nih.gov/factsheets/Magnesium-HealthProfessional/); Mah & Pitre, Oral magnesium supplementation for insomnia in older adults: a systematic review and meta-analysis, BMC Complementary Medicine and Therapies, 2021 (https://pmc.ncbi.nlm.nih.gov/articles/PMC8053283/)
This article describes one person’s experience and is general information, not medical advice. Talk to a doctor or pharmacist before starting a supplement, especially if you have kidney problems or take other medication.