Magnesium Glycinate 400mg — Premium Chelated Form
400mg elemental magnesium as bisglycinate — the highest-bioavailability, most stomach-friendly form. The UK's #1 choice for sleep and stress.
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Order dispatched, tracking info sent. Most customers take their first dose the day it arrives.
Research shows it takes ~14 days to anchor a new habit. By now, most customers have found their ideal time of day.
At 8 weeks, customers report the strongest improvements. Consistency is everything with nutritional supplements.
Over 90% of Medibro subscribers are still on the same product at 3 months — the clearest signal a supplement is working.
Magnesium glycinate (bisglycinate) is the gold standard for supplementation — bound to glycine for maximum absorption and minimum GI side effects. Unlike magnesium oxide (only 4% absorbed), bisglycinate delivers up to 80% elemental magnesium to cells.
Each capsule provides 400mg elemental magnesium — well above the EU NRV of 375mg. 120 capsules = 2 months at 2 capsules/day.
Benefits
- ✓Sleep quality
- ✓Stress reduction
- ✓Muscle relaxation
- ✓Energy production
- ✓PMS
Complete your stack
✨What customers say
From 20 reviews★ 4.7Customers appreciate the premium quality and effectiveness of magnesium glycinate, noting significant improvements in sleep quality, anxiety reduction, and relief from muscle cramps and restless legs.
Some users mention that it takes 3-6 weeks to see noticeable results, and a few find the product to be on the expensive side for long-term use.
This supplement is ideal for individuals struggling with sleep issues, anxiety, muscle cramps, or those seeking a high-quality magnesium option recommended by healthcare professionals.
Customer reviews
- ★★★★☆Emma R.Verified buyer16/04/2026Good product, takes time
Takes about 3-4 weeks to feel the difference but I can now say my anxiety is slightly reduced and I sleep through the night more consistently. The capsules are easy to swallow too. Would be 5 stars but takes a while to kick in.
- ★★★★★Neil H.20/03/2026Premium quality worth the price
The glycinate chelate form is more expensive than oxide but the difference in absorption and tolerance is massive. Worth every penny.
- ★★★★★Tom H.Verified buyer11/03/2026Solved my restless legs
Had restless legs syndrome for years. My physio suggested magnesium glycinate and after 4 weeks this has genuinely reduced significantly. Can't believe I didn't try this sooner.
- ★★★★★Alan B.Verified buyer10/03/2026Stopped my leg cramps
Night time leg cramps were destroying my sleep. 2 capsules of this before bed and they're gone completely. Brilliant.
- ★★★★☆Janet W.25/02/2026Takes 3-4 weeks to work
Patience required. Nothing for 3 weeks then quite dramatic improvement in sleep quality. Stick with it.
- ★★★★★Sarah M.Verified buyer17/02/2026Game changer for my sleep
Been taking this for 6 weeks now. My sleep has genuinely improved — I fall asleep faster and wake up feeling more rested. The glycinate form doesn't cause any digestive issues like the cheap oxide versions I've tried before. Worth every penny.
- ★★★★★Victoria P.Verified buyer08/02/2026Essential supplement
Magnesium deficiency is incredibly common and this form is genuinely superior. My sleep improved, anxiety reduced, and muscle cramps gone.
- ★★★★☆Deborah A.Verified buyer01/02/2026Good but pricey for long-term use
Works really well — calm, better sleep. Just expensive to take 2 capsules daily long term. Would be 5 stars at a lower price.
- ★★★☆☆Rachel P.24/01/2026OK but expensive
Does what it says but quite expensive compared to high street options. Quality seems good though and the glycinate form is definitely gentler on my stomach.
- ★★★☆☆Carol T.10/01/2026Took a while to see results
Took 6 weeks before any noticeable difference. Better sleep but not dramatic. Still giving it more time.
- ★★★★★James T.Verified buyer04/01/2026Finally a magnesium that works
Tried three other brands before this. The glycinate form makes all the difference — no laxative effect, actually absorbs. My muscle cramps after running have completely stopped. Would recommend to anyone who's been disappointed by other magnesium supplements.
- ★★★★★Susan F.Verified buyer26/12/2025Reduced my migraines
Neurologist suggested magnesium for migraines. After 3 months on this my migraine frequency dropped from 3/month to 0-1/month.
- ★★★★★Michael B.19/12/2025Doctor recommended, great quality
My GP mentioned I was deficient and recommended glycinate form specifically. This is the best value quality glycinate I found. 400mg elemental per serving is proper clinical dose, not the watered down stuff.
- ★★★★★Peter C.Verified buyer30/11/2025My whole family takes this
Started taking for sleep, recommended to wife (improved PMS symptoms) and elderly father (reduced muscle cramps). Premium supplement.
- ★★★★★Robert G.Verified buyer12/10/2025Better than prescription sleep aid
Had zopiclone for years. Came off it with help from GP and used magnesium glycinate + sleep hygiene. Genuinely works.
- ★★★★★Kenneth R.Verified buyer02/10/2025Life changing for anxiety
Chronic anxiety sufferer. Magnesium glycinate alongside therapy has made a noticeable difference to my baseline anxiety levels.
- ★★★★★John M.Verified buyer09/07/2025Recommended by my chiropractor
Chiropractor recommended for my back spasms. The muscle relaxing effects are genuine. Sleep much better too.
- ★★★★★Patricia H.Verified buyer08/07/2025Best sleep supplement out there
Tried everything — melatonin, valerian, lavender. This is the only thing that's made a consistent, real difference to my sleep.
- ★★★★★Tracey M.Verified buyer24/06/2025GP approved alternative to meds
My GP suggested magnesium as a first-line approach before considering medication for my restlessness. This solved the problem.
- ★★★★★Edward L.Verified buyer20/06/2025Couldn't sleep for months
Desperate after months of poor sleep. This was recommended by a functional medicine doctor. Changed my life within 2 weeks.
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