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Magnesium⁺

4.7
Rated 4.7 out of 5 stars
4.7 Stars (919 Reviews)

A clean, gentle magnesium formula for head-to-toe health.

1 ingredient (magnesium glycinate), powering 300+ bodily functions. Made by scientists and dietitians to keep all your engines running.

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  • Samantha
    7 June 2025

    I wear a Whoop and my sleep has improved 100%! I was taking magnesium but I didn’t realise there were a few variations and I had been taking the wrong one. As soon as I started taking these…wow!

  • Fiona W.
    16 May 2025

    Sleeping like a baby!! Wouldn't be without them...

  • Bjorn T.
    5 May 2025

    One of the better quality magnesium supplements I've tried, as it's not pumped full of thickeners and fillers as many others are. So far I feel good effects from it in terms of recovery from workouts, and more settled, deeper sleep.

  • Jonathan
    4 July 2025

    Key body metrics all up. Since using this I have seen an improvement in HRV, Pulse Ox, and recovery. I can go for a ride, play tennis and I know I won't feel as meh in the morning anymore.

  • Lorna
    6 July 2025

    Best out there! After 3 months I'm back sleeping through the night which is amazing when you are a woman in your 40s!

  • Amy S.
    10 June 2025

    Heights magnesium has completely transformed my sleep. After years of not sleeping well I had tried everything. I am a life long heights convert these days.

  • Feel calmer

    Known for its calming properties and contributes to the reduction of tiredness and fatigue.

  • Fuel your workouts

    Supports an active lifestyle by contributing to muscle function and recovery after exercise.

  • Rest & recover

    Contributes to electrolyte balance, nervous system function, and maintaining healthy bones.

  • Stay energised

    Promotes normal energy metabolism so you can keep going.

  • Boost your performance

    Plays a key role in over 300 bodily functions, including energy production and muscle function.

  • Look after your mental health

    Contributes to normal psychological so you can feel your best.

  • Sharpen your focus

    Contributes to normal cognitive function, supporting memory, concentration and learning.

Magnesium glycinate

A single serving (2 capsules) of Magnesium⁺ delivers 300mg of elemental magnesium, providing 80% of the European daily recommended amount for magnesium. 

Outer capsule made from Hydroxypropyl Methylcellulose.

See full ingredients list

Take 2 capsules a day. We recommend in the evening, but anytime that suits your routine works for us.

Wash down with some water or juice, with or without food.

Store in a cool, dry place out of direct sunlight—no fridge necessary. 

Top tip: keep Magnesium⁺ on your bedside table to help build the habit.

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  • GLUTEN

  • GMOs

  • DAIRY

  • ANIMAL BY-PRODUCTS

  • FILLERS

  • ALLERGENS

  • CONTAMINANTS

  • ADDITIVES

  • TOXINS

  • HEAVY METALS

  • SUGAR

"I’m not waking up in the middle of the night anymore…and I’m more 'on it' than I used to be."

Carol Vorderman

Presenter, Media Personality & Writer

3 reasons why Carol loves Magnesium⁺

Get the sleep you’ve been dreaming of

Tossing and turning? Magnesium⁺ helps you fall asleep faster, stay asleep longer, and wake up truly refreshed.

300+ reasons why

You can’t make it, but you need it for everything—from muscle recovery to nervous system support. Don’t run on empty.

Free from everything

No fillers, no nasties—just pure, highly absorbable magnesium glycinate. Better sleep and energy, nothing extra.

Simply the best… magnesium compound

Our extensively researched formula uses magnesium glycinate, known to be highly absorbable and easy on your gut.

So your body can put that nutritional goodness to the best use. 

Magnesium, made better

Highest-quality magnesium glycinate

Potent + effective dose

Gentle on your gut

Free from bulking agents and fillers

Third-party testing on every batch to ensure quality

Made in the UK

300mg elemental magnesium
Standard magnesium
200mg elemental magnesium

"I sleep like a baby, and wake up feeling refreshed"

Forget restless sleep. Sweet dreams are made with Magnesium⁺.

Formulated by experts

  • Sophie Medlin, RD Head of Nutritional Research

    Sophie Medlin is a consultant dietitian, chair of the British Dietetic Association for London, and founder of City Dietitians.

    Sophie Medlin, RD Head of Nutritional Research
  • Dr. Tara Swart, PhD Chief Science Officer

    Dr Tara Swart is an Oxford-trained medical doctor, a neuroscientist with a PhD in neuropharmacology, and a senior lecturer at MIT.

    Dr. Tara Swart, PhD Chief Science Officer

We develop and update our formulas based on the latest research, working with dietitians and neuroscientists at the top of their game.

So you can be at yours.

Frequently asked questions

Research shows that magnesium glycinate (what we use in our formula) is the most absorbable magnesium compound—meaning your body can put it to the best use.

It’s particularly effective for supporting sleep, psychological function, muscle health, and nervous system function. It’s also kinder to your digestive system, so you can top up magnesium levels without too many trips to the loo.

Yes—our bodies can’t produce magnesium and lots of adults are deficient.

The European NRV is 375mg. Each Magnesium⁺ capsule contains 150mg of elemental (active) magnesium sourced from magnesium glycinate. So, a single serving (2 capsules) of Magnesium⁺ delivers 300mg of elemental magnesium, providing 80% of your recommended daily intake. Sorted.

Magnesium⁺ supports over 300 of your body’s biochemical functions, keeping your engines running around the clock. So you can take it at any time of of day, with or without food. Since magnesium is known for its relaxing, calming properties, some people prefer to take it before bed.

Like a lot of good things in life, Magnesium⁺ is a long-term commitment rather than a quick fix. But even if you don’t feel the difference immediately, that mineral powerhouse is getting to work behind the scenes. 

Playing a key role in over 300 of your body’s biochemical functions, magnesium contributes to your sleep, energy, muscle function and recovery, psychological function, nervous system, bones and teeth, and cell division.

Make it a daily habit, and Magnesium⁺ will continue to support your overall health. You might even notice the benefits our reviewers describe.

Absolutely. All our formulas are designed to work together. 


Magnesium⁺ & Vitals⁺

Recharge and balance your nutritional profile. Research suggests magnesium has an effect on vitamin D function too.


Magnesium⁺ & Biotic⁺

Support your overall wellbeing and give your gut some TLC. Our formula uses magnesium glycinate, which is known to be gentle on your digestive system. 


Magnesium⁺, Vitals⁺ & Biotic⁺

The complete package to cover all your bases.

4.7
Rated 4.7 out of 5 stars
Based on 919 reviews
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919 reviews
  • Lynne M.
    Flag of United Kingdom
    Verified Buyer
    I recommend this product
    Age Range 55 - 64
    Wellness concern Sleep, Headaches/Migraines, Energy, General Wellbeing
    Had you tried a different Magnesium supplement before trying this? Yes
    Rated 5 out of 5 stars
    20 seconds ago
    Better Sleep, Better Me

    I’ve been taking the Heights Magnesium (two tablets once a day before bed) and it’s made a real difference. I’m sleeping through the night and feel so much better for it. Simple to take and really effective.

    ResultsRated 5.0 on a scale of 1 to 5
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  • Felix
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    2 hours ago
    Really good

    Really good

    Was this helpful?
  • Vijay C.
    Flag of United Kingdom
    Verified Buyer
    I recommend this product
    Age Range 35 - 44
    Wellness concern Recovery, Sleep
    Had you tried a different Magnesium supplement before trying this? Yes
    Rated 5 out of 5 stars
    3 hours ago
    Can tell a big difference

    Have tried many different magnesium products but having tried this, i can really tell a differnece in my sleep quality. It took a couple of weeks to kick in but my Whoop is very happy with my sleep quality now!

    ResultsRated 5.0 on a scale of 1 to 5
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  • Sharne
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    5 hours ago
    5 stars

    5 stars

    Was this helpful?
  • craig
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    6 hours ago
    5 stars

    5 stars

    Was this helpful?
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