Magnesium Bisglycinate

No. hale. is an essential mineral — not a drug, not a hormone. Magnesium bisglycinate supports your brain's natural GABA production, helping your nervous system calm down on its own. It doesn't force sleep. It gives your body what it needs to sleep naturally.

Most customers report falling asleep within 20–40 minutes of taking hale. Take it 30–60 minutes before bed for best results. Some people notice a difference on the very first night, but the full effect typically builds over 2–3 nights of consistent use.

No. Magnesium is an essential nutrient your body needs daily regardless — 79% of adults don't get enough from diet alone. Unlike melatonin or sleep medications, magnesium doesn't create dependency or tolerance. It's simply replenishing a mineral your body was already low on.

Unlike melatonin and sleep aids, magnesium bisglycinate doesn’t force sleep through sedation — it supports your body’s natural GABA production. Because it works with your biology rather than overriding it, customers consistently tell us their mornings feel different.

This is exactly what magnesium bisglycinate does best. It supports GABA production — the neurotransmitter that tells your brain to calm down — while glycine itself acts as an inhibitory neurotransmitter. The result: your overthinking quiets, the mental to-do lists fade, and your mind shifts from wired to tired naturally.

Yes. Many customers report that middle-of-the-night wake-ups stop within the first 1–2 weeks. Unlike melatonin, which wears off after a few hours, magnesium supports your nervous system's calm response throughout the entire night — not just for the first few hours.

Melatonin is a hormone. Magnesium is a mineral. Melatonin forces a sleep signal that can build tolerance and disrupt your body’s natural production over time. Magnesium bisglycinate supports your brain’s own calm-down process (GABA production) without hormonal interference — no tolerance, no dependency.

Yes. Many customers start by taking both and gradually phase out melatonin over 1–2 weeks as the magnesium takes effect. There's no negative interaction between the two. Most people find they simply don't need the melatonin anymore.

Many users report needing higher doses over time as tolerance builds. Because melatonin is a hormone, supplementing it long-term may reduce your body's own production. Magnesium doesn't have this problem — it's a nutrient your body needs and uses every day regardless of supplementation.

Glycinate (bisglycinate) delivers a dual benefit: the magnesium supports GABA production and blocks excitatory NMDA receptors, while the glycine amino acid independently promotes relaxation and lowers core body temperature. Other forms like oxide or citrate don't provide this glycine benefit. Organic magnesium forms like glycinate are also better absorbed than inorganic forms — and it's the gentlest form on your stomach, with no bloating or digestive issues.

2 capsules daily, taken 30–60 minutes before bed. Each serving provides 200mg of elemental magnesium. Take them at the same time each night — consistency helps your body build a sleep rhythm around your evening ritual.

Yes. Chelated bisglycinate is gentle on the stomach with or without food. Some people prefer taking it with a light snack as part of their wind-down routine.

Missing a night occasionally is fine — magnesium levels build up over time, so one missed dose won't reset your progress. Just take your capsules the next evening as normal. Consistency over weeks matters more than perfection on any single night.

Most interactions are managed with timing, not avoidance: take antibiotics 2 hours before or 4–6 hours after magnesium, separate thyroid medication by 4+ hours, and check with your doctor if you're on blood pressure medication. If you take any prescription medicine, a quick word with your doctor or pharmacist is always the safe move.

Magnesium is an essential mineral during pregnancy, and many pregnant women are deficient. However, we always recommend consulting your OB/GYN or midwife before starting any supplement during pregnancy or while breastfeeding.

Yes — magnesium and vitamin D are a natural pair: your body needs magnesium to activate vitamin D. Zinc and most daily supplements pair fine too. Two timing rules: take calcium 2–4 hours apart (they compete for absorption) and space iron by at least 2 hours. If you're transitioning off melatonin, taking both for a week or two is fine.

We offer tracked shipping on all orders. Orders are packed and shipped by our fulfillment team within 24 business hours. Due to high demand, delivery times currently range from 5–13 business days depending on your location.

Returning is simple. Just email us at hello@halewellness.com and we'll handle everything.

We offer a 90-day money-back guarantee. If you don't sleep deeper within 90 days, contact us for a full refund — no forms, no hassle, no questions. We're that confident.

Yes — chemically identical. "Bisglycinate" is the precise name (two glycine molecules bonded to one magnesium), "glycinate" is the common shorthand, and "diglycinate" means the same thing too. We use bisglycinate because it's exact. Don't pay anyone a premium for a fancier word on the label.

Pure. Some brands label a product "glycinate" but bulk it up with cheap magnesium oxide to inflate the label number. hale. is 100% chelated bisglycinate — 200mg elemental, stated plainly, verified by third-party testing on every batch. What's on the label is what's in the capsule.

In plain English: across 3 trials, magnesium cut the time to fall asleep by about 17 minutes versus a placebo.

Study: Oral magnesium supplementation for insomnia in older adults: a Systematic Review & Meta-Analysis. BMC Complementary Medicine and Therapies, 2021. 3 randomised controlled trials, n=151. Post-intervention sleep onset latency was 17.36 minutes less after magnesium supplementation compared to placebo (95% CI -27.27 to -7.44, p=0.0006). View paper →

In plain English: magnesium helps your brain make and use GABA, the signal that calms your nervous system down.

Study: Magnesium Status and Stress: The Vicious Circle Concept Revisited. Nutrients, 2020. 100 citations. Magnesium plays an inhibitory key role in the regulation and neurotransmission of the normal stress response, modulating GABA receptors (the brain’s primary inhibitory neurotransmitter) and restraining HPA axis cortisol output. View paper →

Study: The Role and the Effect of Magnesium in Mental Disorders: A Systematic Review. Nutrients, 2020. 117 citations. 32 articles reviewed across depression, anxiety, ADHD. Evidence that magnesium supplementation is beneficial for mental health outcomes. View paper →

In plain English: glycine nudges your core body temperature down, the same cue your body reads as 'time to sleep'.

Study: The glycine site of NMDA receptors: A target for cognitive enhancement in psychiatric disorders. Progress in Neuro-Psychopharmacology and Biological Psychiatry, 2019. 56 citations. Glycine is an agonist at the NMDA receptor glycine site, with demonstrated pro-cognitive and calming effects. Glycine promotes sleep by lowering core body temperature via peripheral vasodilation and acts as an inhibitory neurotransmitter in its own right. View paper →

In plain English: in a 2025 placebo-controlled trial, magnesium bisglycinate cut insomnia severity by week four.

Study: Magnesium Bisglycinate Supplementation in Healthy Adults Reporting Poor Sleep: A Randomized, Placebo-Controlled Trial. Nature and Science of Sleep, 2025. Randomised, double-blind, placebo-controlled trial, n=155 adults aged 18–65. 250mg elemental magnesium bisglycinate significantly reduced Insomnia Severity Index scores vs placebo by Week 4 (p=0.049). Greater improvements among participants with lower baseline dietary magnesium intake. View paper →

In plain English: chelated forms like bisglycinate absorb better than cheap inorganic magnesium, so more of it actually reaches you.

Study: Bioavailability of magnesium food supplements: A systematic review. Nutrition, 2021. 42 citations. 14 studies reviewed. “Inorganic formulations appear to be less bioavailable than organic ones.” Chelated forms like bisglycinate are absorbed through amino acid transport pathways in the small intestine, resulting in superior GI tolerability compared to oxide and citrate. View paper →

In plain English: magnesium dampens the over-excitable brain signals that fragment sleep, helping the brain stay quiet through the night.

Study: The Role of Magnesium in Depression, Migraine, Alzheimer’s Disease, and Cognitive Health: A Comprehensive Review. Nutrients, 2025. Magnesium influences glutamatergic and GABAergic neurotransmission, as well as the activity of the hypothalamic-pituitary-adrenal (HPA) axis. Magnesium’s voltage-dependent block of NMDA receptors prevents excitotoxicity and supports neural quieting essential for sleep architecture. View paper →

In plain English: about 79% of US adults don't get enough magnesium from food, so most people start from a deficit.

Study: Magnesium status and supplementation influence vitamin D status and metabolism: results from a randomized trial. The American Journal of Clinical Nutrition, 2018. 148 citations. Randomised controlled trial, n=180 adults. Cites NHANES data showing 79% of US adults do not meet their Recommended Dietary Allowance of magnesium. This widespread deficiency may explain why many people experience poor sleep, elevated stress, and low energy. View paper →

Every scientific claim on this page is backed by peer-reviewed research from journals indexed in PubMed, Semantic Scholar, and other academic databases. We prioritise human studies published in Q1–Q2 ranked journals (the top 50% by impact). We do not cherry-pick findings — where evidence is mixed, we say so. Our full research library covering 27 benefit categories and 80+ papers is available in our Notion research hub. hale. is not a medicine and does not claim to treat, cure, or prevent any disease. Always consult your healthcare provider before starting any supplement.