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Best Magnesium 100mg of 2026
Last updated on 05/04/2026
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Magnesium
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1
Metagenics Magnesium Glycinate 100mg – High Strength Supplement - Supports Energy Metabolism & Nervous System Function – 220 Tablets
Metagenics
Why we love it
Highly absorbable and gentle.
Promotes calm and relaxation.
Supports muscle and nerve health.
Main Highlights
Magnesium Glycinate: 100mg of magnesium per tablet. Highly absorbable and gentle on the stomach. Glycine is an amino acid that the body uses to make glutathione, a powerful antioxidant that can help protect cells against free radicals
For your Bedtime Routine: Developed as part of a nightly routine with magnesium which contributes normal functioning of the nervous system and psychological function
Reduces Tiredness and Fatigue: Magnesium reduces tiredness and fatigue and contributes to normal muscle function, functioning of the nervous system and maintenance of normal bones
Tablet Format: A good alternative for individuals who do not like taking magnesium powder or magnesium spray formats
Unlock Whole-Body Health: Metagenics, formerly Nutri Advanced, provides the same pure, potent, clinically tested formulas trusted by healthcare professionals for decades. The science that creates balance
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9.8
Exceptional
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9.8
Exceptional
Metagenics
Metagenics Magnesium Glycinate 100mg – High Strength Supplement - Supports Energy Metabolism & Nervous System Function – 220 Tablets
Check Price
Show More
Why we love it
Highly absorbable and gentle.
Promotes calm and relaxation.
Supports muscle and nerve health.
Main Highlights
Magnesium Glycinate: 100mg of magnesium per tablet. Highly absorbable and gentle on the stomach. Glycine is an amino acid that the body uses to make glutathione, a powerful antioxidant that can help protect cells against free radicals
For your Bedtime Routine: Developed as part of a nightly routine with magnesium which contributes normal functioning of the nervous system and psychological function
Reduces Tiredness and Fatigue: Magnesium reduces tiredness and fatigue and contributes to normal muscle function, functioning of the nervous system and maintenance of normal bones
Tablet Format: A good alternative for individuals who do not like taking magnesium powder or magnesium spray formats
Unlock Whole-Body Health: Metagenics, formerly Nutri Advanced, provides the same pure, potent, clinically tested formulas trusted by healthcare professionals for decades. The science that creates balance
Show More
Value for Money
2
TERRANOVA Organic Magnesium 100Mg Complex, 100 CT
Terranova
Why we love it
Philosophy of total wellbeing.
Blend of beneficial ingredients.
100mg magnesium per capsule.
Main Highlights
The Terranova philosophy embodies total wellbeing and utilizes the inherent wisdom of the Earth to nourish and to heal.
This supplement also includes a blend of ingredients known as MAGNIFOOD, which includes Avena Sativa, Nettle, and Pumpkin Seed, as well as Pyridoxal 5-Phosphate.
Terranova Magnesium 100mg Complex is a dietary supplement that contains 100mg of magnesium per capsule.
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9.8
Exceptional
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9.8
Exceptional
Terranova
TERRANOVA Organic Magnesium 100Mg Complex, 100 CT
Check Price
Show More
Why we love it
Philosophy of total wellbeing.
Blend of beneficial ingredients.
100mg magnesium per capsule.
Main Highlights
The Terranova philosophy embodies total wellbeing and utilizes the inherent wisdom of the Earth to nourish and to heal.
This supplement also includes a blend of ingredients known as MAGNIFOOD, which includes Avena Sativa, Nettle, and Pumpkin Seed, as well as Pyridoxal 5-Phosphate.
Terranova Magnesium 100mg Complex is a dietary supplement that contains 100mg of magnesium per capsule.
Show More
3
Metagenics Magnesium Glycinate 100mg – High Strength Supplement - Supports Energy Metabolism & Nervous System Function – 120 Tablets
Metagenics
Why we love it
Highly absorbable, gentle Magnesium.
Promotes good night's sleep.
Combats fatigue, supports health.
Main Highlights
Magnesium Glycinate: 100mg of magnesium per tablet. Highly absorbable and gentle on the stomach. Glycine is an amino acid that the body uses to make glutathione, a powerful antioxidant that can help protect cells against free radicals
Psychological Function: Magnesium contributes to normal psychological function. This formula provides magnesium in the glycinate form, which is gentle on the digestive system
Reduces Tiredness and Fatigue: Magnesium reduces tiredness and fatigue and contributes to normal muscle function, functioning of the nervous system and maintenance of normal bones
Tablet Format: A good alternative for individuals who do not like taking magnesium powder or magnesium spray formats
Unlock Whole-Body Health: Metagenics, formerly Nutri Advanced, provides the same pure, potent, clinically tested formulas trusted by healthcare professionals for decades. The science that creates balance
Show More
9.7
Exceptional
Check Price
9.7
Exceptional
Metagenics
Metagenics Magnesium Glycinate 100mg – High Strength Supplement - Supports Energy Metabolism & Nervous System Function – 120 Tablets
Check Price
Show More
Why we love it
Highly absorbable, gentle Magnesium.
Promotes good night's sleep.
Combats fatigue, supports health.
Main Highlights
Magnesium Glycinate: 100mg of magnesium per tablet. Highly absorbable and gentle on the stomach. Glycine is an amino acid that the body uses to make glutathione, a powerful antioxidant that can help protect cells against free radicals
Psychological Function: Magnesium contributes to normal psychological function. This formula provides magnesium in the glycinate form, which is gentle on the digestive system
Reduces Tiredness and Fatigue: Magnesium reduces tiredness and fatigue and contributes to normal muscle function, functioning of the nervous system and maintenance of normal bones
Tablet Format: A good alternative for individuals who do not like taking magnesium powder or magnesium spray formats
Unlock Whole-Body Health: Metagenics, formerly Nutri Advanced, provides the same pure, potent, clinically tested formulas trusted by healthcare professionals for decades. The science that creates balance
Show More
4
MAGSUPPS Magnesium Glycinate - 100% Pure, Fully-Chelated, Non-Buffered - 100mg Magnesium per Capsule - 120 Capsules - UK Made - Lab Tested - No Fillers
MAGSUPPS
Why we love it
Superior bioavailability magnesium glycinate.
Supports mind and body relaxation.
No fillers, pure magnesium.
Main Highlights
100% Pure Magnesium Glycinate: Each vegan-friendly capsule delivers 100mg of pure elemental magnesium — with no fillers, flow agents, or unnecessary additives.
Superior Absorption: Our magnesium glycinate is fully chelated and non-buffered — meaning it’s not diluted with cheaper, less absorbable magnesium oxide.
An Essential Mineral: Magnesium contributes to over 300 enzymatic processes — from energy production to muscle, nerve, and psychological function.
Third-Party Lab Tested & UK Made: Manufactured in the UK to ISO 9001, HACCP, and GMP standards — Independently tested for purity and potency you can trust.
120 Capsules per Bottle: Flexible dosing — take 1 to 3 capsules per day, providing up to a 2 to 4 month supply depending on your needs.
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9.5
Superb
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9.5
Superb
MAGSUPPS
MAGSUPPS Magnesium Glycinate - 100% Pure, Fully-Chelated, Non-Buffered - 100mg Magnesium per Capsule - 120 Capsules - UK Made - Lab Tested - No Fillers
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Why we love it
Superior bioavailability magnesium glycinate.
Supports mind and body relaxation.
No fillers, pure magnesium.
Main Highlights
100% Pure Magnesium Glycinate: Each vegan-friendly capsule delivers 100mg of pure elemental magnesium — with no fillers, flow agents, or unnecessary additives.
Superior Absorption: Our magnesium glycinate is fully chelated and non-buffered — meaning it’s not diluted with cheaper, less absorbable magnesium oxide.
An Essential Mineral: Magnesium contributes to over 300 enzymatic processes — from energy production to muscle, nerve, and psychological function.
Third-Party Lab Tested & UK Made: Manufactured in the UK to ISO 9001, HACCP, and GMP standards — Independently tested for purity and potency you can trust.
120 Capsules per Bottle: Flexible dosing — take 1 to 3 capsules per day, providing up to a 2 to 4 month supply depending on your needs.
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5
Life Extension, Magnesium Citrate, 100mg, 100 Vegan Capsules, Laboratory-Tested, Gluten-Free, Vegetarian, SOYA-Free, Non-GMO
Life Extension
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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9.4
Superb
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9.4
Superb
Life Extension
Life Extension, Magnesium Citrate, 100mg, 100 Vegan Capsules, Laboratory-Tested, Gluten-Free, Vegetarian, SOYA-Free, Non-GMO
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Show More
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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6
Magnesium Bisglycinate 770 mg | 100 mg Elemental per Capsule | 180 Vegan Capsules | Highly Bioavailable & Gentle on Stomach | Non-Laxative Formula | Source of Nature
Source of Nature
Why we love it
Exceptional absorption for maximum potency.
Promotes relaxation and deep sleep.
Pure, natural, and allergen-free.
Main Highlights
💊 180 Capsules – 2-Month Supply Just 3 capsules per day provide 2,310 mg of magnesium bisglycinate (300 mg elemental magnesium) – effective dosing with excellent tolerance.
⚡ Chelated for Maximum Absorption Magnesium bisglycinate is one of the most bioavailable forms – efficiently absorbed with minimal digestive interference.
💪 Non-Laxative & Gentle on the Gut Ideal for sensitive individuals – unlike citrate or oxide, bisglycinate does not trigger diarrhoea or discomfort.
🧠 Supports Muscles, Nerves & Mind Magnesium contributes to normal muscle function, nervous system activity and psychological wellbeing – holistic daily support.*
🦴 For Bone Health, Teeth & Cellular Function Supports bone and tooth maintenance, electrolyte balance, protein synthesis and cell division – a true essential mineral.*
🧪 Lab-Tested Quality – Made in Denmark Produced in Denmark under GMP & HACCP conditions. Each batch is independently tested for purity, heavy metals and microbial content.
🌱 100% Vegan & Additive-Free No magnesium stearate, artificial fillers, gluten, lactose, soy or GMOs. Small, neutral-tasting HPMC capsules – easy to take & fully plant-based.
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9.2
Superb
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9.2
Superb
Source of Nature
Magnesium Bisglycinate 770 mg | 100 mg Elemental per Capsule | 180 Vegan Capsules | Highly Bioavailable & Gentle on Stomach | Non-Laxative Formula | Source of Nature
Check Price
Show More
Why we love it
Exceptional absorption for maximum potency.
Promotes relaxation and deep sleep.
Pure, natural, and allergen-free.
Main Highlights
💊 180 Capsules – 2-Month Supply Just 3 capsules per day provide 2,310 mg of magnesium bisglycinate (300 mg elemental magnesium) – effective dosing with excellent tolerance.
⚡ Chelated for Maximum Absorption Magnesium bisglycinate is one of the most bioavailable forms – efficiently absorbed with minimal digestive interference.
💪 Non-Laxative & Gentle on the Gut Ideal for sensitive individuals – unlike citrate or oxide, bisglycinate does not trigger diarrhoea or discomfort.
🧠 Supports Muscles, Nerves & Mind Magnesium contributes to normal muscle function, nervous system activity and psychological wellbeing – holistic daily support.*
🦴 For Bone Health, Teeth & Cellular Function Supports bone and tooth maintenance, electrolyte balance, protein synthesis and cell division – a true essential mineral.*
🧪 Lab-Tested Quality – Made in Denmark Produced in Denmark under GMP & HACCP conditions. Each batch is independently tested for purity, heavy metals and microbial content.
🌱 100% Vegan & Additive-Free No magnesium stearate, artificial fillers, gluten, lactose, soy or GMOs. Small, neutral-tasting HPMC capsules – easy to take & fully plant-based.
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7
Biocare Magnesium Glycinate - High Strength Magnesium Supplement - 100mg per Capsule - for Tiredness & Fatigue - Muscle & Nervous System Support - 60 Capsules
BIOCARE
Why we love it
Pure magnesium glycinate support.
Energy and fatigue reduction.
Supports muscles, bones, teeth.
Main Highlights
High Strength Magnesium Glycinate Supplement: Each capsule delivers 100mg pure magnesium glycinate, a highly bioavailable and well-absorbed form, supporting a reduction of tiredness and fatigue as part of your daily wellness routine
Magnesium for Muscle, Bones, and Teeth: Formulated to assist with normal muscle function, and maintenance of normal bones and teeth, making it a comprehensive daily choice to support your body’s structural and functional needs
Nervous System and Psychological Support: Magnesium contributes to normal functioning of the nervous system and normal psychological function, using only pure magnesium glycinate with no added magnesium oxide
Energy, Protein, and Electrolyte Balance: Designed to contribute to normal energy-yielding metabolism, normal protein synthesis, electrolyte balance, and also has a role in cell division for overall support and wellbeing
Care in Every Capsule: With over 35 years of experience, BioCare invests in your wellbeing, offering a range of supplements and support designed around individual needs
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9.1
Superb
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9.1
Superb
BIOCARE
Biocare Magnesium Glycinate - High Strength Magnesium Supplement - 100mg per Capsule - for Tiredness & Fatigue - Muscle & Nervous System Support - 60 Capsules
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Show More
Why we love it
Pure magnesium glycinate support.
Energy and fatigue reduction.
Supports muscles, bones, teeth.
Main Highlights
High Strength Magnesium Glycinate Supplement: Each capsule delivers 100mg pure magnesium glycinate, a highly bioavailable and well-absorbed form, supporting a reduction of tiredness and fatigue as part of your daily wellness routine
Magnesium for Muscle, Bones, and Teeth: Formulated to assist with normal muscle function, and maintenance of normal bones and teeth, making it a comprehensive daily choice to support your body’s structural and functional needs
Nervous System and Psychological Support: Magnesium contributes to normal functioning of the nervous system and normal psychological function, using only pure magnesium glycinate with no added magnesium oxide
Energy, Protein, and Electrolyte Balance: Designed to contribute to normal energy-yielding metabolism, normal protein synthesis, electrolyte balance, and also has a role in cell division for overall support and wellbeing
Care in Every Capsule: With over 35 years of experience, BioCare invests in your wellbeing, offering a range of supplements and support designed around individual needs
Show More
8
Magnesium Glycinate Gummies 100mg for Kids, Vitamin D3 Magnesium Gummies for Sleep, Brain, Focus, Bone, Gluten Free, Non GMO, Vegan, 60 Gummies (1)
Izkan
Why we love it
Improves kids' rest quality.
Supports balanced energy levels.
Kids love the taste.
Main Highlights
✔️【Magnesium Glycinate for Kids 】- Our magnesium glycinate chew ingredients are suitable for children over the age of 3, taking daily magnesium gummies can improve your rest quality. Magnesium is used to assist muscle health, bone development, and relaxation. They also support a balanced mood, helping kids feel at ease throughout the day.
✔️【Relaxing Formula】Try our delicious magnesium supplements for kids made with high-absorption magnesium to promote balanced energy levels for kids and to help them relax and support better moods. Magnesium glycinate gummies help kids wind down after an active day. The ingredients work together to support bone strength and provide a soothing effect that complements overall health
✔️【Parent Approved】We believe in providing parents like you with the finest quality kids' gummy vitamins and supplements, and we know your children will love these magnesium gummy vitamins. These kids magnesium gummies are simple to chew, perfect for both daytime and bedtime routines, offering support for calmness in a kid-friendly way
✔️【Healthy Ingredients】Each Nature Magnesium Glycinate gummy is made with pectin, not gelatin, and is gluten-free, with no artificial flavors, no synthetic dyes, and no high fructose corn syrup
✔️【Why Magnesium 】Magnesium is one of the most important minerals ideal for supporting head-to-toe kids' wellness ranging from muscle function and bone strength to sleep quality and mood support. These carefully selected ingredients contribute to relaxation and overall wellness, making this a great addition to a daily routine for growing kids
✔️【Why IZKAN】We are proud to be a leading name in gummies Vitamins for kids and Adults and mineral supplements because we believe wellness should come in many forms
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9.1
Superb
Check Price
9.1
Superb
Izkan
Magnesium Glycinate Gummies 100mg for Kids, Vitamin D3 Magnesium Gummies for Sleep, Brain, Focus, Bone, Gluten Free, Non GMO, Vegan, 60 Gummies (1)
Check Price
Show More
Why we love it
Improves kids' rest quality.
Supports balanced energy levels.
Kids love the taste.
Main Highlights
✔️【Magnesium Glycinate for Kids 】- Our magnesium glycinate chew ingredients are suitable for children over the age of 3, taking daily magnesium gummies can improve your rest quality. Magnesium is used to assist muscle health, bone development, and relaxation. They also support a balanced mood, helping kids feel at ease throughout the day.
✔️【Relaxing Formula】Try our delicious magnesium supplements for kids made with high-absorption magnesium to promote balanced energy levels for kids and to help them relax and support better moods. Magnesium glycinate gummies help kids wind down after an active day. The ingredients work together to support bone strength and provide a soothing effect that complements overall health
✔️【Parent Approved】We believe in providing parents like you with the finest quality kids' gummy vitamins and supplements, and we know your children will love these magnesium gummy vitamins. These kids magnesium gummies are simple to chew, perfect for both daytime and bedtime routines, offering support for calmness in a kid-friendly way
✔️【Healthy Ingredients】Each Nature Magnesium Glycinate gummy is made with pectin, not gelatin, and is gluten-free, with no artificial flavors, no synthetic dyes, and no high fructose corn syrup
✔️【Why Magnesium 】Magnesium is one of the most important minerals ideal for supporting head-to-toe kids' wellness ranging from muscle function and bone strength to sleep quality and mood support. These carefully selected ingredients contribute to relaxation and overall wellness, making this a great addition to a daily routine for growing kids
✔️【Why IZKAN】We are proud to be a leading name in gummies Vitamins for kids and Adults and mineral supplements because we believe wellness should come in many forms
Show More
9
Health Plus Magnesium 100mg Mineral Supplement - 90 Tablets
Health Plus
Why we love it
Supports muscle function and energy.
Promotes heart health and relaxation.
Eco-friendly packaging for sustainability.
Main Highlights
100mg Magnesium from a highly bio-available Oxide source, for normal muscle function, the production of ATP for energy and so a reduction of tiredness and fatigue
Essential for normal muscle contraction and relaxation, including the heart
Ensuring a healthy nervous system and of course maintaining the strength of bones, joints and teeth
Suitable for vegetarians and vegans
90 tablets, in a planet-friendly 99% recycled pot
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8.9
Excellent
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8.9
Excellent
Health Plus
Health Plus Magnesium 100mg Mineral Supplement - 90 Tablets
Check Price
Show More
Why we love it
Supports muscle function and energy.
Promotes heart health and relaxation.
Eco-friendly packaging for sustainability.
Main Highlights
100mg Magnesium from a highly bio-available Oxide source, for normal muscle function, the production of ATP for energy and so a reduction of tiredness and fatigue
Essential for normal muscle contraction and relaxation, including the heart
Ensuring a healthy nervous system and of course maintaining the strength of bones, joints and teeth
Suitable for vegetarians and vegans
90 tablets, in a planet-friendly 99% recycled pot
Show More
10
Life & Pursuits Pure Magnesium Glycinate 775 mg | 100 mg Magnesium per Capsule | High Absorption Chelated, Non-Buffered Supplement | 3rd Party Tested (120 Count (Pack of 1))
Life & Pursuits
Why we love it
High absorption and gentle tummy.
Pure vegan and safe.
Third-party tested for quality.
Main Highlights
High Absorption, Non-Buffered Chelated Pure Magnesium Glycinate: Our magnesium supplement delivers 100 mg of elemental magnesium in a true chelated bis-glycinate form — not buffered with magnesium oxide like many other brands. This ensures superior bioavailability, better absorption, and is gentle on stomach with no laxative effect.
Pure & Vegan Formula: Crafted with purity in mind, our chelated magnesium glycinate capsules are vegan and free from any class 1, 2, 3 solvents as per ICH guidelines. It is also free from gluten, soy, and dairy. Our product is manufactured in a state-of-the-art GMP-certified facility, ensuring quality and safety in every batch.
3rd Party Lab Tested for Quality Assurance: Each Magnesium Glycinate batch undergoes rigorous third-party testing to guarantee potency, purity, and safety. Only trust a supplement that meets the highest quality standards for your health and well-being!
Formulated for Balance. Because More Isn’t Better! : With 100 mg of elemental magnesium per capsule, our magnesium supplement aligns well with the optimal, WHO recommended daily allowance. Flexible dosing allows for 1–2 capsules daily to support heart health, bone strength, and metabolic functions.
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8.8
Excellent
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8.8
Excellent
Life & Pursuits
Life & Pursuits Pure Magnesium Glycinate 775 mg | 100 mg Magnesium per Capsule | High Absorption Chelated, Non-Buffered Supplement | 3rd Party Tested (120 Count (Pack of 1))
Check Price
Show More
Why we love it
High absorption and gentle tummy.
Pure vegan and safe.
Third-party tested for quality.
Main Highlights
High Absorption, Non-Buffered Chelated Pure Magnesium Glycinate: Our magnesium supplement delivers 100 mg of elemental magnesium in a true chelated bis-glycinate form — not buffered with magnesium oxide like many other brands. This ensures superior bioavailability, better absorption, and is gentle on stomach with no laxative effect.
Pure & Vegan Formula: Crafted with purity in mind, our chelated magnesium glycinate capsules are vegan and free from any class 1, 2, 3 solvents as per ICH guidelines. It is also free from gluten, soy, and dairy. Our product is manufactured in a state-of-the-art GMP-certified facility, ensuring quality and safety in every batch.
3rd Party Lab Tested for Quality Assurance: Each Magnesium Glycinate batch undergoes rigorous third-party testing to guarantee potency, purity, and safety. Only trust a supplement that meets the highest quality standards for your health and well-being!
Formulated for Balance. Because More Isn’t Better! : With 100 mg of elemental magnesium per capsule, our magnesium supplement aligns well with the optimal, WHO recommended daily allowance. Flexible dosing allows for 1–2 capsules daily to support heart health, bone strength, and metabolic functions.
Show More