Best Magnesium Citrate Capsules 300mg of 2025

Last updated on 12/10/2025
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1
Pure Encapsulations Magnesium (Citrate) 150mg - Highly Bioavailable Magnesium Chelate - 90 Capsules
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Pure Encapsulations Magnesium (Citrate) 150mg - Highly Bioavailable Magnesium Chelate - 90 Capsules
Pure Encapsulations
Free Shipping
Why we love it
  • Supports overall nervous system health.
  • Fights everyday fatigue effectively.
  • Free from common allergens.
Main Highlights
  • Active Ingredients: Highly bioavailable magnesium chelate contributing to normal functioning of the nervous system, psychological function, muscle function, and the maintenance of normal bones and teeth. Take 2 capsules once daily, with a meal
  • Tiredness and Fatigue: Intake of magnesium supplements contributes to normal energy-yielding metabolism and reduction of tiredness and fatigue
  • Other Benefits: This supplement also assists with electrolyte balance, as well as maintenance of bones and teeth
  • Pure Quality: Our magnesium citrate tablets are made with only premium ingredients sourced from trusted suppliers and guided by our nutritional experts, then carefully manufactured and tested to verify their potency and purity
  • Free From: All Pure Encapsulations products are free from wheat, eggs, tree nuts, peanuts, gluten, artificial colours, flavours, sweeteners, coatings and shellacs, GMOs, unnecessary binders, fillers and preservatives
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9.7
Exceptional
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9.7
Exceptional
Pure Encapsulations
Pure Encapsulations Magnesium (Citrate) 150mg - Highly Bioavailable Magnesium Chelate - 90 Capsules
Free Shipping
Why we love it
  • Supports overall nervous system health.
  • Fights everyday fatigue effectively.
  • Free from common allergens.
Main Highlights
  • Active Ingredients: Highly bioavailable magnesium chelate contributing to normal functioning of the nervous system, psychological function, muscle function, and the maintenance of normal bones and teeth. Take 2 capsules once daily, with a meal
  • Tiredness and Fatigue: Intake of magnesium supplements contributes to normal energy-yielding metabolism and reduction of tiredness and fatigue
  • Other Benefits: This supplement also assists with electrolyte balance, as well as maintenance of bones and teeth
  • Pure Quality: Our magnesium citrate tablets are made with only premium ingredients sourced from trusted suppliers and guided by our nutritional experts, then carefully manufactured and tested to verify their potency and purity
  • Free From: All Pure Encapsulations products are free from wheat, eggs, tree nuts, peanuts, gluten, artificial colours, flavours, sweeteners, coatings and shellacs, GMOs, unnecessary binders, fillers and preservatives
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Value for Money
2
Viridian - High Potency Magnesium 300mg 120 Capsules | Vegan Formula | Supports Energy, Reduces Tiredness & Fatigue | No Artificial Fillers, Ethically Sourced
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Viridian - High Potency Magnesium 300mg 120 Capsules | Vegan Formula | Supports Energy, Reduces Tiredness & Fatigue | No Artificial Fillers, Ethically Sourced
Viridian
9% Off
Why we love it
  • Triple formulation ensures effective absorption.
  • Supports over 300 enzyme reactions.
  • Enhances vitality and well-being.
Main Highlights
  • TRIPLE FORMULATION FOR EFFECTIVENESS: This high potency magnesium supplement combines magnesium citrate, oxide, and bisglycinate forms to ensure optimal absorption and utilisation by the body. Formulated based on human clinical data, each capsule delivers a potent dose to support overall vitality.
  • SUPPORTS 300+ ENZYME REACTIONS: Magnesium is crucial for over 300 enzymatic processes in the body, playing a vital role in energy production, muscle function, and nerve transmission. This formula provides essential support to maintain optimal bodily functions and wellbeing.
  • ESSENTIAL MINERAL FOR VITALITY: Known as the ‘spark of life’, magnesium helps with maintaining normal heart health and muscle contraction by contributing to normal protein synthesis, normal functioning of the nervous system and electrolyte balance. This high potency formula ensures you receive sufficient daily intake to support your active lifestyle.
  • BIOAVAILABILITY AND ABSORPTION: The combination of Viridian magnesium citrate, oxide, and bisglycinate enhances bioavailability, ensuring that your body absorbs and utilises this essential nutrient effectively. Containing 100% active ingredients, this magnesium 300mg supplement is formulated by nutrition experts to meet stringent quality standards.
  • COMPLETE SATISFACTION: Like every Viridian supplement, Viridian High Potency Magnesium 30 Vegan Capsules is fully considered from the seed to the recycling bank with 130 quality checks. Our customer service team and qualified nutritionists, based in Northamptonshire, are available to support you. Our range is also stocked in independent health stores across the country.
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9.6
Superb
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9.6
Superb
Viridian
Viridian - High Potency Magnesium 300mg 120 Capsules | Vegan Formula | Supports Energy, Reduces Tiredness & Fatigue | No Artificial Fillers, Ethically Sourced
9% Off
Why we love it
  • Triple formulation ensures effective absorption.
  • Supports over 300 enzyme reactions.
  • Enhances vitality and well-being.
Main Highlights
  • TRIPLE FORMULATION FOR EFFECTIVENESS: This high potency magnesium supplement combines magnesium citrate, oxide, and bisglycinate forms to ensure optimal absorption and utilisation by the body. Formulated based on human clinical data, each capsule delivers a potent dose to support overall vitality.
  • SUPPORTS 300+ ENZYME REACTIONS: Magnesium is crucial for over 300 enzymatic processes in the body, playing a vital role in energy production, muscle function, and nerve transmission. This formula provides essential support to maintain optimal bodily functions and wellbeing.
  • ESSENTIAL MINERAL FOR VITALITY: Known as the ‘spark of life’, magnesium helps with maintaining normal heart health and muscle contraction by contributing to normal protein synthesis, normal functioning of the nervous system and electrolyte balance. This high potency formula ensures you receive sufficient daily intake to support your active lifestyle.
  • BIOAVAILABILITY AND ABSORPTION: The combination of Viridian magnesium citrate, oxide, and bisglycinate enhances bioavailability, ensuring that your body absorbs and utilises this essential nutrient effectively. Containing 100% active ingredients, this magnesium 300mg supplement is formulated by nutrition experts to meet stringent quality standards.
  • COMPLETE SATISFACTION: Like every Viridian supplement, Viridian High Potency Magnesium 30 Vegan Capsules is fully considered from the seed to the recycling bank with 130 quality checks. Our customer service team and qualified nutritionists, based in Northamptonshire, are available to support you. Our range is also stocked in independent health stores across the country.
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3
VitaBright Magnesium Citrate Capsules 1480mg | 444mg Elemental Mg | 4 Months | High Strength Magnesium Supplements for Women & Men | Mag Citrate Powder in Capsules (Not Tablets)
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VitaBright Magnesium Citrate Capsules 1480mg | 444mg Elemental Mg | 4 Months | High Strength Magnesium Supplements for Women & Men | Mag Citrate Powder in Capsules (Not Tablets)
VitaBright
11% OffFree Shipping
Why we love it
  • Boosts energy and reduces fatigue.
  • Formulated for easy absorption.
  • Quality assured by professionals.
Main Highlights
  • VITABRIGHT MAGNESIUM CITRATE SUPPLEMENTS - Our capsules contain magnesium citrate powder, and they provide 444mg of elemental magnesium daily. 4 Month Supply. Take two capsules daily with food or as directed by your healthcare professional. This is a clean supplement, with nothing but magnesium inside a vegetable capsule shell. Vegan and vegetarian.
  • EASY TO TAKE, EASY TO ABSORB MAGNESIUM SUPPLEMENTS - VitaBright capsules can be twisted open, so you can easily mix the magnesium citrate powder with fruit juice if you prefer magnesium citrate liquid. Magnesium citrate is a bioavailable form of magnesium which is easier to absorb, making it effective whether you take it in our magnesium capsules or as a magnesium citrate drink.
  • HOW MUCH TO TAKE - Magnesium for MEN: As high strength magnesium supplements for men, take 2 capsules daily. This gives 1480mg of Magnesium Citrate, providing 444mg of elemental magnesium. Magnesium for WOMEN - As magnesium tablets for women, you may safely take the same serving as men. Alternatively, you may take 1 capsule a day, giving 222mg of elemental magnesium.
  • BRITISH MADE QUALITY, TRUSTED WORLDWIDE - This VitaBright Magnesium supplement contains nothing but magnesium. We have our ingredients independently lab-tested to ensure purity, and our capsules are made and bottled in the UK, to exacting hygiene and quality-control standards in GMP facilities. VitaBright is a British company, founded in 2010 and trusted by millions worldwide.
  • THE VITABRIGHT RANGE OF MAGNESIUM HIGH STRENGTH SUPPLEMENTS - We offer a range of magnesium supplements on Amazon. The VitaBright Magnesium 6-in-1 complex includes a full dose of zinc, plus synergistic vitamins D and B6. Alternatively VitaBright Magnesium Glycinate is a clean supplement that's very popularly taken before going to sleep.
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9.4
Superb
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9.4
Superb
VitaBright
VitaBright Magnesium Citrate Capsules 1480mg | 444mg Elemental Mg | 4 Months | High Strength Magnesium Supplements for Women & Men | Mag Citrate Powder in Capsules (Not Tablets)
11% OffFree Shipping
Why we love it
  • Boosts energy and reduces fatigue.
  • Formulated for easy absorption.
  • Quality assured by professionals.
Main Highlights
  • VITABRIGHT MAGNESIUM CITRATE SUPPLEMENTS - Our capsules contain magnesium citrate powder, and they provide 444mg of elemental magnesium daily. 4 Month Supply. Take two capsules daily with food or as directed by your healthcare professional. This is a clean supplement, with nothing but magnesium inside a vegetable capsule shell. Vegan and vegetarian.
  • EASY TO TAKE, EASY TO ABSORB MAGNESIUM SUPPLEMENTS - VitaBright capsules can be twisted open, so you can easily mix the magnesium citrate powder with fruit juice if you prefer magnesium citrate liquid. Magnesium citrate is a bioavailable form of magnesium which is easier to absorb, making it effective whether you take it in our magnesium capsules or as a magnesium citrate drink.
  • HOW MUCH TO TAKE - Magnesium for MEN: As high strength magnesium supplements for men, take 2 capsules daily. This gives 1480mg of Magnesium Citrate, providing 444mg of elemental magnesium. Magnesium for WOMEN - As magnesium tablets for women, you may safely take the same serving as men. Alternatively, you may take 1 capsule a day, giving 222mg of elemental magnesium.
  • BRITISH MADE QUALITY, TRUSTED WORLDWIDE - This VitaBright Magnesium supplement contains nothing but magnesium. We have our ingredients independently lab-tested to ensure purity, and our capsules are made and bottled in the UK, to exacting hygiene and quality-control standards in GMP facilities. VitaBright is a British company, founded in 2010 and trusted by millions worldwide.
  • THE VITABRIGHT RANGE OF MAGNESIUM HIGH STRENGTH SUPPLEMENTS - We offer a range of magnesium supplements on Amazon. The VitaBright Magnesium 6-in-1 complex includes a full dose of zinc, plus synergistic vitamins D and B6. Alternatively VitaBright Magnesium Glycinate is a clean supplement that's very popularly taken before going to sleep.
Show More
4
Magnesium Supplements | Magnesium Citrate Capsules (Buffered 30%) | 240 Vegan Capsules | Providing 444mg Elemental Magnesium | Lactose & Gluten-Free
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Magnesium Supplements | Magnesium Citrate Capsules (Buffered 30%) | 240 Vegan Capsules | Providing 444mg Elemental Magnesium | Lactose & Gluten-Free
WeightWorld
Free Shipping
Why we love it
  • Superior absorption and bioavailability.
  • Promotes relaxation and rejuvenation.
  • Supports athletic performance and recovery.
Main Highlights
  • SUPPLEMENT IN ITS OPTIMAL FORM: WeightWorld offers 1480mg of Magnesium Citrate, delivering 444mg of Elemental Magnesium (the purest form of magnesium) per serving. It is a bioavailable form & is widely preferred due to its soluble nature. It contains more elemental features by weight, giving it an above-average content making it suitable for all. These magnesium citrate capsules are unflavoured and easy to swallow, making daily supplement routines simple and effective.
  • MAGNESIUM - THE UNSUNG HERO: Magnesium is a vital mineral that plays a pivotal role in several functions. Magnesium contributes to electrolyte balance & the reduction of tiredness and fatigue. It contributes to normal energy-yielding metabolism. Moreover, it contributes to the normal functioning of the nervous system, normal protein synthesis & the maintenance of normal bones & teeth (EFSA Claims).
  • 240 CAPSULES & 4 MONTHS SUPPLY: During workouts, essential minerals are lost through sweat. Each serving of WeightWorld's supplement aims to fulfil this requirement. This Magnesium Supplement contains 240 capsules, offering 4 months of supply for ideal usage that lasts for months. With just 2 capsules of Magnesium Citrate Supplement a day, WeightWorld aims to provide the most suitable supplement in its natural form with no bitter aftertaste.
  • SUITABLE FOR VARIOUS INDIVIDUAL NEEDS: Manufactured in the UK under strict GMP guidelines, WeightWorld's Magnesium Citrate Capsules make ideal supplements. They are gluten-free, non-GMO, and vegan-friendly, making them suitable for various dietary preferences and lifestyles. Developed for easy consumption, they provide a straightforward way to get a daily dose of Magnesium Citrate without any hassle.
  • THE JOURNEY OF WEIGHTWORLD: Born from a passion for food supplements, WeightWorld has been growing since 2006. With nearly two decades of experience, the brand offers a wide range of products, including vitamins, minerals, plant-based supplements, devices, and more. Now reaching multiple countries, the focus remains on developing products that evolve with changing needs while staying true to the values that started it all.
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9.3
Superb
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9.3
Superb
WeightWorld
Magnesium Supplements | Magnesium Citrate Capsules (Buffered 30%) | 240 Vegan Capsules | Providing 444mg Elemental Magnesium | Lactose & Gluten-Free
Free Shipping
Why we love it
  • Superior absorption and bioavailability.
  • Promotes relaxation and rejuvenation.
  • Supports athletic performance and recovery.
Main Highlights
  • SUPPLEMENT IN ITS OPTIMAL FORM: WeightWorld offers 1480mg of Magnesium Citrate, delivering 444mg of Elemental Magnesium (the purest form of magnesium) per serving. It is a bioavailable form & is widely preferred due to its soluble nature. It contains more elemental features by weight, giving it an above-average content making it suitable for all. These magnesium citrate capsules are unflavoured and easy to swallow, making daily supplement routines simple and effective.
  • MAGNESIUM - THE UNSUNG HERO: Magnesium is a vital mineral that plays a pivotal role in several functions. Magnesium contributes to electrolyte balance & the reduction of tiredness and fatigue. It contributes to normal energy-yielding metabolism. Moreover, it contributes to the normal functioning of the nervous system, normal protein synthesis & the maintenance of normal bones & teeth (EFSA Claims).
  • 240 CAPSULES & 4 MONTHS SUPPLY: During workouts, essential minerals are lost through sweat. Each serving of WeightWorld's supplement aims to fulfil this requirement. This Magnesium Supplement contains 240 capsules, offering 4 months of supply for ideal usage that lasts for months. With just 2 capsules of Magnesium Citrate Supplement a day, WeightWorld aims to provide the most suitable supplement in its natural form with no bitter aftertaste.
  • SUITABLE FOR VARIOUS INDIVIDUAL NEEDS: Manufactured in the UK under strict GMP guidelines, WeightWorld's Magnesium Citrate Capsules make ideal supplements. They are gluten-free, non-GMO, and vegan-friendly, making them suitable for various dietary preferences and lifestyles. Developed for easy consumption, they provide a straightforward way to get a daily dose of Magnesium Citrate without any hassle.
  • THE JOURNEY OF WEIGHTWORLD: Born from a passion for food supplements, WeightWorld has been growing since 2006. With nearly two decades of experience, the brand offers a wide range of products, including vitamins, minerals, plant-based supplements, devices, and more. Now reaching multiple countries, the focus remains on developing products that evolve with changing needs while staying true to the values that started it all.
Show More
5
Magnesium Citrate 1480mg - 240 Vegan Capsules - 4 Month Supply - Providing 444mg Elemental Mag - Capsules not Tablets - High Strength Supplement - Made in The UK - Nu U Nutrition
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Magnesium Citrate 1480mg - 240 Vegan Capsules - 4 Month Supply - Providing 444mg Elemental Mag - Capsules not Tablets - High Strength Supplement - Made in The UK - Nu U Nutrition
Nu U Nutrition
10% OffFree Shipping
Why we love it
  • High potency bioavailable supplement.
  • Great value for money.
  • Vegan and allergen free.
Main Highlights
  • ✔ POWERFUL FORMULATION - Our Nu U Platinum Series offers premium food supplements at an exceptional price point. Our Magnesium Citrate, is a high potency and bioavailable Magnesium supplement which delivers 1480mg of Magnesium per serving, providing you with 444mg of Elemental Magnesium. Our magnesium capsules offer a quick and convenient daily serving and are designed to be easier to swallow than regular magnesium tablets due to their lozenge shape.
  • ✔ BEST VALUE - We are confident that we will not be beaten on price or quality! Our Magnesium Citrate supplement gives amazing value for money, providing 240 capsules per bottle. Keeping you replenished with a high strength, natural magnesium supplement for 4 months. Most supplements are only offering 180 capsules per bottle, so why pay more for less?
  • ✔ MIGHTY MINERAL - Magnesium is a mineral required by every organ within our bodies and is used in many functions. Magnesium plays a particular role in contributing to the reduction of tiredness and fatigue*. If we do not have enough Magnesium in our diets we can feel sluggish. It also helps to contribute to a normal energy-yielding metabolism* supporting the release of energy by the body so you can feel prepared for the day ahead *as substantiated by the European Food Safety Authority.
  • ✔ VEGAN FRIENDLY - Our formulation is suitable for those who follow a vegetarian or vegan diet. We never use GMO ingredients and can ensure our capsules are also free from any nasty, artificial ingredients, preservatives and allergens such as egg, milk, lactose, soya, gluten, wheat and peanuts. No hidden nasties here!
  • ✔ PLATINUM RANGE NEXT LEVEL SUPPLEMENTATION - At Nu U Nutrition your health is important to us. Our research and development team have spent over 12 months developing a range of world-class supplements using only the finest ingredients and most bio-available formulations that are backed by scientific and clinical studies. We do all this because we believe in your health and a Nu U.
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9.1
Superb
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9.1
Superb
Nu U Nutrition
Magnesium Citrate 1480mg - 240 Vegan Capsules - 4 Month Supply - Providing 444mg Elemental Mag - Capsules not Tablets - High Strength Supplement - Made in The UK - Nu U Nutrition
10% OffFree Shipping
Why we love it
  • High potency bioavailable supplement.
  • Great value for money.
  • Vegan and allergen free.
Main Highlights
  • ✔ POWERFUL FORMULATION - Our Nu U Platinum Series offers premium food supplements at an exceptional price point. Our Magnesium Citrate, is a high potency and bioavailable Magnesium supplement which delivers 1480mg of Magnesium per serving, providing you with 444mg of Elemental Magnesium. Our magnesium capsules offer a quick and convenient daily serving and are designed to be easier to swallow than regular magnesium tablets due to their lozenge shape.
  • ✔ BEST VALUE - We are confident that we will not be beaten on price or quality! Our Magnesium Citrate supplement gives amazing value for money, providing 240 capsules per bottle. Keeping you replenished with a high strength, natural magnesium supplement for 4 months. Most supplements are only offering 180 capsules per bottle, so why pay more for less?
  • ✔ MIGHTY MINERAL - Magnesium is a mineral required by every organ within our bodies and is used in many functions. Magnesium plays a particular role in contributing to the reduction of tiredness and fatigue*. If we do not have enough Magnesium in our diets we can feel sluggish. It also helps to contribute to a normal energy-yielding metabolism* supporting the release of energy by the body so you can feel prepared for the day ahead *as substantiated by the European Food Safety Authority.
  • ✔ VEGAN FRIENDLY - Our formulation is suitable for those who follow a vegetarian or vegan diet. We never use GMO ingredients and can ensure our capsules are also free from any nasty, artificial ingredients, preservatives and allergens such as egg, milk, lactose, soya, gluten, wheat and peanuts. No hidden nasties here!
  • ✔ PLATINUM RANGE NEXT LEVEL SUPPLEMENTATION - At Nu U Nutrition your health is important to us. Our research and development team have spent over 12 months developing a range of world-class supplements using only the finest ingredients and most bio-available formulations that are backed by scientific and clinical studies. We do all this because we believe in your health and a Nu U.
Show More
6
Life Extension, Magnesium Citrate, 100mg, 100 Vegan Capsules, Laboratory-Tested, Gluten-Free, Vegetarian, SOYA-Free, Non-GMO
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Life Extension, Magnesium Citrate, 100mg, 100 Vegan Capsules, Laboratory-Tested, Gluten-Free, Vegetarian, SOYA-Free, Non-GMO
Life Extension
12% OffFree Shipping
Why we love it
  • Highly dosed for daily intake.
  • Promotes good bioavailability.
  • Quality-tested and additive-free.
Main Highlights
  • HIGHLY DOSED: One dose, three capsules, Magnesium Citrate from Life Extension contains 300mg of magnesium, which you can supply to your body daily
  • GOOD BIOAVAILABILITY: Life Extension Magnesium Citrate is characterised by good bioavailability and is suitable for a vegan diet
  • HIGH QUALITY: Life Extension magnesium capsules are tested for quality and purity in independent laboratories
  • WITHOUT UNWANTED ADDITIVES: Magnesium capsules from Life Extension are gluten-free and produced without genetic engineering
  • IMPORTANT NUTRIENTS: Magnesium Citrate from Life Extension contains 300mg of magnesium per 3 capsules; an important nutrient involved in many processes in the human body
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8.9
Excellent
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8.9
Excellent
Life Extension
Life Extension, Magnesium Citrate, 100mg, 100 Vegan Capsules, Laboratory-Tested, Gluten-Free, Vegetarian, SOYA-Free, Non-GMO
12% OffFree Shipping
Why we love it
  • Highly dosed for daily intake.
  • Promotes good bioavailability.
  • Quality-tested and additive-free.
Main Highlights
  • HIGHLY DOSED: One dose, three capsules, Magnesium Citrate from Life Extension contains 300mg of magnesium, which you can supply to your body daily
  • GOOD BIOAVAILABILITY: Life Extension Magnesium Citrate is characterised by good bioavailability and is suitable for a vegan diet
  • HIGH QUALITY: Life Extension magnesium capsules are tested for quality and purity in independent laboratories
  • WITHOUT UNWANTED ADDITIVES: Magnesium capsules from Life Extension are gluten-free and produced without genetic engineering
  • IMPORTANT NUTRIENTS: Magnesium Citrate from Life Extension contains 300mg of magnesium per 3 capsules; an important nutrient involved in many processes in the human body
Show More
7
MAGSUPPS Triple Magnesium Complex for Muscles, Calm, Sleep & Energy - 300mg of Pure Magnesium Glycinate, Malate & Citrate - 120 Capsules - 40 Servings - UK Made - Lab Tested - No Fillers
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MAGSUPPS Triple Magnesium Complex for Muscles, Calm, Sleep & Energy - 300mg of Pure Magnesium Glycinate, Malate & Citrate - 120 Capsules - 40 Servings - UK Made - Lab Tested - No Fillers
MAGSUPPS
Free Shipping
Why we love it
  • Promotes overall well-being and vitality.
  • Pure and potent magnesium blend.
  • Strict quality and safety standards.
Main Highlights
  • Pure and Potent Magnesium Supplement: MAGSUPPS delivers a 100% pure blend of fully-chelated, non-buffered magnesium glycinate, malate and citrate in vegan-friendly capsules — with no fillers, flow agents or magnesium oxide. 300mg of elemental magnesium per serving — 40 servings, 120 capsules per bottle.
  • Supports Healthy Muscles & Heart: Magnesium contributes to normal muscle function, including the heart muscle — supporting neurotransmission and muscle contraction.
  • Promotes Calm & Restful Sleep: Magnesium contributes to normal muscle, nerve and psychological function — supporting a relaxed mind and body for deeper, more restful sleep.
  • Fights Fatigue & Fuels Energy: Magnesium contributes to normal energy-yielding metabolism and the reduction of tiredness and fatigue — supporting energy production at a cellular level.
  • 3rd Party Lab Tested & UK Made: MAGSUPPS Triple Magnesium Complex is made in the UK to ISO 9001, HACCP and GMP-certified standards. Every batch is independently lab tested for purity and potency you can trust.
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8.7
Excellent
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8.7
Excellent
MAGSUPPS
MAGSUPPS Triple Magnesium Complex for Muscles, Calm, Sleep & Energy - 300mg of Pure Magnesium Glycinate, Malate & Citrate - 120 Capsules - 40 Servings - UK Made - Lab Tested - No Fillers
Free Shipping
Why we love it
  • Promotes overall well-being and vitality.
  • Pure and potent magnesium blend.
  • Strict quality and safety standards.
Main Highlights
  • Pure and Potent Magnesium Supplement: MAGSUPPS delivers a 100% pure blend of fully-chelated, non-buffered magnesium glycinate, malate and citrate in vegan-friendly capsules — with no fillers, flow agents or magnesium oxide. 300mg of elemental magnesium per serving — 40 servings, 120 capsules per bottle.
  • Supports Healthy Muscles & Heart: Magnesium contributes to normal muscle function, including the heart muscle — supporting neurotransmission and muscle contraction.
  • Promotes Calm & Restful Sleep: Magnesium contributes to normal muscle, nerve and psychological function — supporting a relaxed mind and body for deeper, more restful sleep.
  • Fights Fatigue & Fuels Energy: Magnesium contributes to normal energy-yielding metabolism and the reduction of tiredness and fatigue — supporting energy production at a cellular level.
  • 3rd Party Lab Tested & UK Made: MAGSUPPS Triple Magnesium Complex is made in the UK to ISO 9001, HACCP and GMP-certified standards. Every batch is independently lab tested for purity and potency you can trust.
Show More
8
Solgar Magnesium Citrate Tablets, Supports the Nervous System, Energy Release, Reduces Tiredness and Fatigue, Vegan, Brown, 120 Count
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Solgar Magnesium Citrate Tablets, Supports the Nervous System, Energy Release, Reduces Tiredness and Fatigue, Vegan, Brown, 120 Count
Solgar
27% OffFree Shipping
Why we love it
  • Highly absorbable, ideal for digestion.
  • Supports energy, reduces fatigue.
  • Committed to sustainability practices.
Main Highlights
  • ✓HIGHLY ABSORBABLE ‘CITRATE’ FORM OF MAGNESIUM. Solgar's magnesium product is available in a citrate form, which is a highly absorbable form of magnesium compared to the more commonly available form of oxides. Magnesium citrate is therefore ideal for those with digestive issues or those who do not absorb other mineral forms so easily. Vegan, Vegetarian, Kosher.
  • ✓SUPPORTS OPTIMAL WELLBEING. Supports the normal functioning of the nervous system Energy release and reduction of tiredness and fatigue Normal muscle function The maintenance of normal bones The normal psychological function.
  • ✓COMMITTED TO SUSTAINABILITY. For over 70 years we've used 100% recyclable amber glass bottles. This year, we're also celebrating 20 years of being Carbon Neutral.
  • ✓NATURAL WELLNESS. We believe that cleaner is better. We craft our vitamins and minerals in small batches to help ensure consistency and purity from bottle to bottle.
  • ✓AWARD WINNING INNOVATION. With more nutritional 'firsts' than any other vitamin brand, Solgar was among the original pioneers in understanding nutrition and supplements.
Show More
8.7
Excellent
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8.7
Excellent
Solgar
Solgar Magnesium Citrate Tablets, Supports the Nervous System, Energy Release, Reduces Tiredness and Fatigue, Vegan, Brown, 120 Count
27% OffFree Shipping
Why we love it
  • Highly absorbable, ideal for digestion.
  • Supports energy, reduces fatigue.
  • Committed to sustainability practices.
Main Highlights
  • ✓HIGHLY ABSORBABLE ‘CITRATE’ FORM OF MAGNESIUM. Solgar's magnesium product is available in a citrate form, which is a highly absorbable form of magnesium compared to the more commonly available form of oxides. Magnesium citrate is therefore ideal for those with digestive issues or those who do not absorb other mineral forms so easily. Vegan, Vegetarian, Kosher.
  • ✓SUPPORTS OPTIMAL WELLBEING. Supports the normal functioning of the nervous system Energy release and reduction of tiredness and fatigue Normal muscle function The maintenance of normal bones The normal psychological function.
  • ✓COMMITTED TO SUSTAINABILITY. For over 70 years we've used 100% recyclable amber glass bottles. This year, we're also celebrating 20 years of being Carbon Neutral.
  • ✓NATURAL WELLNESS. We believe that cleaner is better. We craft our vitamins and minerals in small batches to help ensure consistency and purity from bottle to bottle.
  • ✓AWARD WINNING INNOVATION. With more nutritional 'firsts' than any other vitamin brand, Solgar was among the original pioneers in understanding nutrition and supplements.
Show More
9
Magnesium Glycinate 4-in-1 Complex - Citrate, Malate & Taurate for Sleep, Tiredness, Muscles & Nervous System - 300mg Elemental Magnesium - High Strength, Chelated, Vegan - 120 Capsules - Made in UK
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Magnesium Glycinate 4-in-1 Complex - Citrate, Malate & Taurate for Sleep, Tiredness, Muscles & Nervous System - 300mg Elemental Magnesium - High Strength, Chelated, Vegan - 120 Capsules - Made in UK
TheraMg
Free Shipping
Why we love it
  • Premium blend of magnesium.
  • Supports muscle and nerve function.
  • Third-party lab tested quality.
Main Highlights
  • ADVANCED MAGNESIUM COMPLEX: Crafted with a premium blend of magnesium glycinate, citrate, malate, and taurate, this high-strength magnesium supplement provides a comprehensive formula. Each bottle contains 120 magnesium capsules, offering a two-month supply for your daily needs.
  • SUPPORT FOR YOUR DAILY ROUTINE: Magnesium supplements are an essential addition to everyday wellness, helping with muscle function and nerve support. An ideal magnesium complex for women and men, perfectly suited to complement a balanced lifestyle.
  • OPTIMISED ELEMENTAL MAGNESIUM: Our magnesium complex delivers 300mg per serving, ensuring the ideal amount of high-strength magnesium without unnecessary excess. A gentle yet effective magnesium supplement for daily use.
  • RIGOROUSLY TESTED FOR QUALITY: Manufactured in a GMP-certified facility and tested both in-house and by Eurofins third-party labs, this magnesium complex supplement meets strict UK standards. Trust this chelated magnesium for safety and reliability.
  • VERSATILE BENEFITS: Whether you're seeking magnesium for sleep or magnesium glycinate sleep support, this magnesium complex supplement is an ideal choice. Designed for convenience, it fits seamlessly into your wellness routine for enhanced balance and relaxation.
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8.7
Excellent
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8.7
Excellent
TheraMg
Magnesium Glycinate 4-in-1 Complex - Citrate, Malate & Taurate for Sleep, Tiredness, Muscles & Nervous System - 300mg Elemental Magnesium - High Strength, Chelated, Vegan - 120 Capsules - Made in UK
Free Shipping
Why we love it
  • Premium blend of magnesium.
  • Supports muscle and nerve function.
  • Third-party lab tested quality.
Main Highlights
  • ADVANCED MAGNESIUM COMPLEX: Crafted with a premium blend of magnesium glycinate, citrate, malate, and taurate, this high-strength magnesium supplement provides a comprehensive formula. Each bottle contains 120 magnesium capsules, offering a two-month supply for your daily needs.
  • SUPPORT FOR YOUR DAILY ROUTINE: Magnesium supplements are an essential addition to everyday wellness, helping with muscle function and nerve support. An ideal magnesium complex for women and men, perfectly suited to complement a balanced lifestyle.
  • OPTIMISED ELEMENTAL MAGNESIUM: Our magnesium complex delivers 300mg per serving, ensuring the ideal amount of high-strength magnesium without unnecessary excess. A gentle yet effective magnesium supplement for daily use.
  • RIGOROUSLY TESTED FOR QUALITY: Manufactured in a GMP-certified facility and tested both in-house and by Eurofins third-party labs, this magnesium complex supplement meets strict UK standards. Trust this chelated magnesium for safety and reliability.
  • VERSATILE BENEFITS: Whether you're seeking magnesium for sleep or magnesium glycinate sleep support, this magnesium complex supplement is an ideal choice. Designed for convenience, it fits seamlessly into your wellness routine for enhanced balance and relaxation.
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10
Magnesium Citrate Complex 500 MG for Calm, Relaxation, Constipation & Digestion Health Support | High Absorption Magnesium Supplement with Elemental Magnesium Oxide | Non-GMO, Soy-Free | 60ct
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Magnesium Citrate Complex 500 MG for Calm, Relaxation, Constipation & Digestion Health Support | High Absorption Magnesium Supplement with Elemental Magnesium Oxide | Non-GMO, Soy-Free | 60ct
Nobi Nutrition
Free Shipping
Why we love it
  • High absorption magnesium citrate.
  • Supports calm and relaxation.
  • Gentle on the digestive system.
Main Highlights
  • HIGH ABSORPTION MAGNESIUM: Magnesium Citrate is highly soluble in water, making it easy for the body to absorb. Its citrate content also enhances its bioavailability, making it one of the most absorbable forms of magnesium.*
  • 500MG COMPLEX: While Magnesium Citrate is well known for being easily absorbed and utilized by the body, Magnesium Oxide has a high percentage of elemental magnesium and is gentle on the digestive system.* Our full spectrum formula contains both types of magnesium to create the perfect balance for everyday supplementation.*
  • SUPPORT CALM & RELAXATION: A good magnesium supplement for men and women helps support proper muscle function.* Magnesium Complex may also support normal calm and sleep.*
  • AID DIGESTION: Magnesium Citrate is the best magnesium for digestion support because it helps to increase the amount of water in the intestines along with supporting normal muscle relaxation.*
  • 2-MONTH SUPPLY: Every serving is just 1 capsule, and each bottle contains 60 capsules (a 2-month supply). Magnesium Citrate Complex is formulated and manufactured in the USA. It is made without dairy, gluten, GMO’s, or soy.
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8.7
Excellent
Product image 1
Product image 2
Product image 3
Product image 4
8.7
Excellent
Nobi Nutrition
Magnesium Citrate Complex 500 MG for Calm, Relaxation, Constipation & Digestion Health Support | High Absorption Magnesium Supplement with Elemental Magnesium Oxide | Non-GMO, Soy-Free | 60ct
Free Shipping
Why we love it
  • High absorption magnesium citrate.
  • Supports calm and relaxation.
  • Gentle on the digestive system.
Main Highlights
  • HIGH ABSORPTION MAGNESIUM: Magnesium Citrate is highly soluble in water, making it easy for the body to absorb. Its citrate content also enhances its bioavailability, making it one of the most absorbable forms of magnesium.*
  • 500MG COMPLEX: While Magnesium Citrate is well known for being easily absorbed and utilized by the body, Magnesium Oxide has a high percentage of elemental magnesium and is gentle on the digestive system.* Our full spectrum formula contains both types of magnesium to create the perfect balance for everyday supplementation.*
  • SUPPORT CALM & RELAXATION: A good magnesium supplement for men and women helps support proper muscle function.* Magnesium Complex may also support normal calm and sleep.*
  • AID DIGESTION: Magnesium Citrate is the best magnesium for digestion support because it helps to increase the amount of water in the intestines along with supporting normal muscle relaxation.*
  • 2-MONTH SUPPLY: Every serving is just 1 capsule, and each bottle contains 60 capsules (a 2-month supply). Magnesium Citrate Complex is formulated and manufactured in the USA. It is made without dairy, gluten, GMO’s, or soy.
Show More

We scanned 1158 products

We reviewed these offers relevant to the Magnesium Citrate Capsules 300mg within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like Pure Encapsulations, Viridian, VitaBright, WeightWorld, Nu U Nutrition, Life Extension, MAGSUPPS, Solgar, TheraMg, Nobi Nutrition, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.
For the best Magnesium Citrate Capsules 300mg in the market, we considered we took a deep dive into 5791 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

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