The Most Bioavailable Form Of Magnesium
Magnesium Bisglycinate Capsules
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120 Vegan Capsules | Full-Reacted Core Chelate® Magnesium | No Fillers. No Binders. Nothing Artificial.
Why Choose Our Magnesium...
Magnesium Bisglycinate Core Chelate® Capsules
These magnesium capsules provide 700mg of Magnesium (77 mg of elemental magnesium) per capsule. One serving consists of four capsules, delivering a total of 2800mg of magnesium (308 mg of elemental magnesium) per serving.
Each pouch contains 120 capsules, providing 30 high-dose servings.
The magnesium is supplied as a fully reacted magnesium bisglycinate chelate using Core Chelate®. This form is not buffered and is designed to provide a highly bioavailable source of magnesium.
This product contains only magnesium bisglycinate chelate and the HPMC vegetable capsule shell, with no fillers, binders, excipients, or flow agents.
The capsules are vegan and free from major allergens. The magnesium is produced in a GMP-certified facility and is independently third-party tested. Batch-specific Certificates of Analysis (COAs), including heavy metal testing, are available.
Magnesium contributes to normal muscle function, normal nervous system function, normal psychological function, electrolyte balance, and the reduction of tiredness and fatigue.
Product Information
Product Details
Magnesium Bisglycinate Core Chelate® Capsules
These magnesium capsules provide 700mg of Magnesium (77 mg of elemental magnesium) per capsule. One serving consists of four capsules, delivering a total of 2800mg of magnesium (308 mg of elemental magnesium) per serving.
Each pouch contains 120 capsules, providing 30 high-dose servings.
The magnesium is supplied as a fully reacted magnesium bisglycinate chelate using Core Chelate®. This form is not buffered and is designed to provide a highly bioavailable source of magnesium.
This product contains only magnesium bisglycinate chelate and the HPMC vegetable capsule shell, with no fillers, binders, excipients, or flow agents.
The capsules are vegan and free from major allergens. The magnesium is produced in a GMP-certified facility and is independently third-party tested. Batch-specific Certificates of Analysis (COAs), including heavy metal testing, are available.
Magnesium contributes to normal muscle function, normal nervous system function, normal psychological function, electrolyte balance, and the reduction of tiredness and fatigue.
Ingredients and Allergens
Ingredients: Magnesium Glycinate (Magnesium Bisglycinate Core Chelate®), HPMC Capsule (Hydroxypropyl Methylcellulose).
Contains NO Fillers, Flow Agents or Additives.
Warning: Consult your doctor or healthcare professional before use if you are taking medication or under medical supervision. For adults aged 18 and over only. Not recommended for pregnant or breastfeeding women. Do not exceed the stated recommended daily dose.
Note: To be used in conjunction with a varied and balanced diet and healthy lifestyle. Food supplements are not to be used as a substitute for a varied diet.
Allergens: For allergens, see ingredients in BOLD/CAPITALS. Product contains no known allergens.
Directions
Directions: Take 4 capsules (High dose) or 2 capsules (Low/Medium dose) with water or juice. Can be consumed at any time daily, ideally taken with a meal. The dosage can be split throughout the day if preferred.
Recommended Dose: High dose 4 capsules (2.8g) or 2 capsules taken twice daily. Low/Medium dose 2 capsules (1.4g) or 1 capsule taken twice daily.
Storage: Store in a cool, dry place, out of direct sunlight and out of reach of children.
COA & Heavy Metal Testing Results
Reviews
Key Benefits of Magnesium Bisglycinate Core Chelate®
Supporting cellular energy, longevity, and healthy aging at the source
Magnesium Bisglycinate consists of magnesium atom bound to 2 glycine molecules with a strong type of bond called chelation
High Bioavailability
Most magnesium compounds have poor bioavailability. Magnesium oxide is the most popular source of magnesium in supplements because it has a high magnesium content. This makes it easy and affordable to formulate with, however it is not very bioavailable (due to its low solubility); it’s thought that only ~4% of the magnesium in magnesium oxide can be absorbed.
Magnesium Bisglycinate is absorbed in the proximal small intestine. Therefore, the absorption of Magnesium Bisglycinate is not affected by stomach pH and dietary factors. There are many dietary factors that can impair magnesium uptake, including:
• Phytates
• Oxylates
• Certain types of fibre
The glycine molecules prevent magnesium from reacting with dietary inhibitors and helps to decrease the pH level in the small intestine, which is it also thought to contribute to its increased bioavailability.
Gentle On The Stomach
Magnesium is often associated with laxative effect due to poor bioavailability. When magnesium salt is not readily absorbed, it draws water into the stools by osmosis. The strong attraction of water to magnesium ions can cause diarrhoea in response to poorly absorbed magnesium supplements. Magnesium Bisglycinate is much gentler and less likely to cause this side effect because the magnesium ion in the chelated state is neutral; it’s too many ions in the intestine that cause osmotic pressure, resulting in a flow of water into the intestinal lumen.
Soluble In Liquids
Magnesium Bisglycinate is freely soluble in water, making it more bioavailable and easier to work with in liquid applications. The most common form of magnesium (magnesium oxide) is very poorly soluble
Why CLNLABS NMN?
6 reasons to choose us.
Third-Party Tested
Independently third-party heavy metal tested
Scientifically Proven
Evidence-based formulation
Made in the UK
Formulated and manufactured in the UK
Free Express Delivery
Orders placed before 1pm are dispatch the same day via our free express service (Mon-Fri). £15 minimum spend
Risk Free
We're always on your side: keeping our loyal customers happy is our top priority and number one goal.
Premium Ingredients
We're always on your side: keeping our loyal customers happy is our top priority and number one goal.
The Best Quality Magnesium Glycinate Guaranteed
We’re Andrew & Richard, brothers and founders of CLNLABS®.
CLNLABS® was built on a simple belief: the supplement industry should do better. Too many products are underdosed, padded with unnecessary ingredients, or hidden behind vague blends designed to maximise profit rather than results. We refuse to play that game.
As a small, family-run business, we only create supplements we would confidently take ourselves. Every product is developed with a clear purpose and built around purity, performance, and transparency — nothing more, nothing less.
If we can’t source the highest-quality ingredient available, we don’t release the product. We believe in quality over quantity, always.
We don’t just claim our supplements are tested — we prove it. We publish our Certificates of Analysis & Heavy Metal Testing so you can see exactly what you’re taking.
Your health is long-term. Your supplements should be too.
✔ Certificates of Analysis for every batch
We provide a Certificate of Analysis (COA) for every production batch, so you can review the results for yourself. Full transparency means you don’t have to take our word for it.
✔ Third-party heavy metal tested
Every batch is independently tested for heavy metals by Eurofins.
✔ No fillers or binders
We never use unnecessary fillers, binders, or flow agents. Every ingredient is included for a purpose — nothing more, nothing less. What you see on the label is exactly what’s inside.
✔ Fully transparent labelling
No hidden ingredients or misleading claims. We clearly disclose all ingredients, dosages, and testing standards so you can make informed choices with confidence. We never use buffered or misleading formulations to inflate numbers or obscure quality.