The Most Bioavailable Form Of Magnesium

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Magnesium Bisglycinate Capsules

Magnesium Bisglycinate Capsules

Join 1,000's of people who choose our Magnesium Bisglycinate every day.

120 Vegan Capsules | Full-Reacted Core Chelate® Magnesium | No Fillers. No Binders. Nothing Artificial.

Sale price  £8.99 Regular price  £9.99
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

DON'T BE FOOLED!

Some magnesium blends may appear high in elemental magnesium, but often include unlisted magnesium oxide—a form known for poor absorption. It’s thought that only ~4% of the magnesium in magnesium oxide can be absorbed! Magnesium oxide Is often linked to digestive discomfort! View test results →

Clean Magnesium Bisglycinate

High Purity: Produced under strict quality controls, Core Chelate® Magnesium Bisglycinate delivers a consistently pure, fully chelated form of magnesium

Highly Bioavailable

As a fully chelated magnesium bisglycinate, Core Chelate® is designed to remain stable through digestion, supporting improved absorption and bioavailability

🚚 Free Delivery

Orders placed before 1pm are dispatch the same day via FREE Delivery (Mon-Fri). £15 minimum spend

📦 Risk Free

Don't love it? No problem, just send it back to us within 100 days for a full refund. We're confident you'll love it!

Key Benefits of Magnesium Bisglycinate Core Chelate®

Supporting cellular energy, longevity, and healthy aging at the source

Deeper, More Restful Sleep

Magnesium bisglycinate supports relaxation of the nervous system, helping you unwind and promote higher-quality, uninterrupted sleep

Calmer Mind & Reduced Stress

Contributes to normal psychological function, supporting stress regulation, mood balance, and mental calm throughout the day

Improved Muscle Function & Recovery

Supports normal muscle contraction and electrolyte balance, helping reduce cramps, tension, and post-exercise fatigue

Sustained Energy & Reduced Fatigue

Plays a key role in energy metabolism, helping combat tiredness and support consistent daily vitality without stimulants

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.

View Certificate of Analysis (COA) →
✔ Third-party heavy metal tested

Every batch is independently tested for heavy metals by Eurofins.

View Testing Reports →
✔ 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.