
Sourced from where pollution never reached.
Zechstein seabed. Sealed 1,500m
Below the surface for 250 million years. Widely considered the purest magnesium source on Earth.
Third-party tested for lead, arsenic, cadmium, and mercury.
What Sets Bear Apart
Every choice we made is to ensure what's on the label is what's in your body.
Real people. Real results.
★★★★★ 4.9 | 50,000+ customers
How to take it.
Why Magnesium Isn't Optional Anymore
80%
of your body's metabolic functions require magnesium to work properly
48%
of adults don't get enough magnesium from their diet and most don't even know it
70%
of the mineral content in vegetables has declined over the last 100 years — making supplementation more important than ever
90%
higher absorption with magnesium glycinate compared to cheap magnesium oxide
What 390mg of absorbed magnesium changes.
Deeper, more restorative sleep
Magnesium glycinate activates the parasympathetic nervous system — the "rest and digest" mode your body needs to fall asleep and stay there. Glycine itself adds a calming effect on the brain. Most customers notice deeper sleep within a week.
Calmer days, fewer "wired" moments
Magnesium regulates cortisol and supports GABA — the neurotransmitter that quiets a racing mind. Low magnesium and high stress feed each other in a loop. Restoring it is one of the most overlooked first steps to feeling steady again.
Less tension, fewer cramps
Your muscles need magnesium to relax. When you're low, they don't — that's the science behind night-time calf cramps, tight jaw, twitching eyelids. Restore magnesium, restore relaxation.
Steady energy without the crash
Magnesium is the cofactor for ATP — the energy currency of every cell. Without enough, your mitochondria can't produce energy efficiently. This isn't caffeine energy. It's the baseline kind.
Healthy heart rhythm support
Magnesium supports the electrical signaling of the heart and healthy blood pressure already within normal range. Cardiologists have called it "the forgotten mineral" for cardiovascular health.
Your magnesium reset, what to expect.
Our Magnesium Glycinate is designed to restore what your body has been missing — not mask symptoms with a quick fix. Here's how your body begins to change once you start taking it daily
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First signs of calm
Falling asleep gets easier. The day-end muscle tension you'd stopped noticing starts to lift. Subtle, but you can feel something shifting.
Week 1 -
Sleep deepens
You're sleeping through the night more consistently and waking up actually rested — not just on time. The afternoon energy crashes start to flatten out.
Week 2 -
Body catches up
Cramps and twitches fade. Mood feels steadier. The "wired but tired" feeling — racing mind at night, hard to wind down — quiets down. You stop reaching for a second coffee.
Month 1 -
New baseline
Sleep is consistently restorative. Stress doesn't hit as hard. Energy is steady, not spiky. You don't think about magnesium anymore — your body just runs the way it was supposed to.
Month 3
Why Choose Bear?
|   | Bear | Others |
|---|---|---|
Elemental magnesium stated on front label |
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Single form (glycinate only) |
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No oxide buffering |
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Source of raw material disclosed |
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Third-party heavy metals test, per batch |
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Free of proprietary blends |
60 Day Money Back Guarantee
We back every order with a 60-day money-back guarantee. If you're not completely satisfied — for any reason — contact us and we'll refund you. Keep the bottle. No questions, no return shipping, no hassle.
FAQ
Why does the magnesium source matter?
Why does the magnesium source matter?
Heavy metals like lead, arsenic, and cadmium have accumulated in soil, water, and minerals across the planet since the Industrial Revolution. The Zechstein seabed in Northern Europe was sealed under bedrock 250 million years ago — long before any industrial activity. Magnesium extracted from it tests free of the contamination found in most modern sources. It's widely considered the purest magnesium source available.
Can I see your heavy metals test results?
Can I see your heavy metals test results?
Yes. Email info@trybearlabs.com with the batch number printed on your bottle and we'll send you the Certificate of Analysis for that specific batch.
How do I know this is real glycinate, not buffered with oxide?
How do I know this is real glycinate, not buffered with oxide?
Our Supplement Facts panel shows the exact compound weight and the exact elemental magnesium amount. No proprietary blends. No hidden oxide. No fillers. What you see on the label is what's inside the capsule. We also publish our Certificate of Analysis on request — batch-specific, with the full ingredient breakdown.
What does "no buffering" mean?
What does "no buffering" mean?
Some brands mix cheap magnesium oxide into a glycinate product to inflate the elemental number on the label. Oxide is about 4% absorbed. The label looks impressive, your body gets the leftovers. We don't buffer.
Will this cause diarrhea or upset my stomach?
Will this cause diarrhea or upset my stomach?
Very unlikely. Magnesium glycinate is specifically known for being the gentlest form on the stomach — unlike cheap magnesium oxide or citrate, which are notorious for causing bloating and loose stools. Our formula is led by glycinate for this exact reason. If you've had bad experiences with other magnesium supplements, this is the form for you.
Why is this better than the cheap magnesium at the pharmacy?
Why is this better than the cheap magnesium at the pharmacy?
Most cheap magnesium at the pharmacy is magnesium oxide. It's cheap to produce and has big numbers on the label, but your body absorbs about 4% of it. Magnesium glycinate absorbs at roughly 80%. So oxide looks like more on paper, but your body gets significantly less. You're paying less per bottle and getting almost nothing per capsule
What's the difference between 2,766mg and 390mg on our label?
What's the difference between 2,766mg and 390mg on our label?
2,766mg is the total weight of the magnesium glycinate compound. 390mg is the elemental magnesium — the actual magnesium your body absorbs and uses. Think of it like this: the compound is the carrier, the elemental magnesium is what your body absorbs. The 390mg is what matters, and it's what you should compare across brands.
How long until I notice a difference?
How long until I notice a difference?
Most customers report noticeable changes in sleep and muscle tension within 7–14 days. Deeper restoration (consistent sleep, steadier mood, fewer cramps) typically settles by week 3–4. Magnesium works through cumulative replenishment, not as a same-day effect.
Is it safe to take with other medications?
Is it safe to take with other medications?
Magnesium can interact with certain medications, particularly antibiotics(take 2 hours before or 4–6 hours after), thyroid medication(separate by 4+ hours), and blood pressure drugs. Most interactions are managed through timing, not avoidance. If you're on prescription medication, we recommend consulting your doctor before starting — just to be safe
How do I know if I'm even deficient?
How do I know if I'm even deficient?
Standard blood tests are unreliable — only 1% of your magnesium is in the blood, so "normal" results don't mean much. Better indicators: frequent muscle cramps or twitches, poor sleep, restless legs, heightened stress or anxiety, chocolate cravings, and fatigue. Nearly half of all adults consume less magnesium than their body needs. If any of those sound familiar, there's a good chance you'd benefit from supplementing.