Last updated: August 2026
Home › Magnesium › Mag-Lock Capsules | Magnesium Glycinate 650mg UK
✅ Food Supplement — Not a Medicine. Mag-Lock has 9 authorised EU/UK health claims for magnesium under retained Regulation 1924/2006 — listed in full below. All other content is educational ingredient description only. Not intended to diagnose, treat, cure or prevent any disease.
⚠️ Consult your GP before use if on prescription medication. Magnesium may interact with certain antibiotics and bisphosphonates — take at least 2 hours apart if prescribed these. Not recommended during pregnancy or breastfeeding without medical advice.
⚡ Quick Answer
Each capsule = 650mg Magnesium Glycinate (CAS 14783-68-7) providing 85mg elemental magnesium = 23% NRV. 9 authorised EU/UK health claims including normal muscle function. Zero fillers. Vegan HPMC capsule. Same formula as Magnesium Glycinate Sleepy Time — positioned for muscle tension support and daytime use. In-house UK. 5 Star FSA. 161,000+ verified sales. Food supplement — not a medicine.
Key Features at a Glance
📋 In This Page
Mag-Lock Magnesium Glycinate 650mg Capsules UK from Charge Products — an established UK supplement supplier since 2016 with 161,000+ verified marketplace sales and a 5 Star Food Hygiene Rating. Each capsule delivers 650mg of Magnesium Glycinate (CAS 14783-68-7) providing 85mg of elemental magnesium — 23% NRV — in a vegan HPMC capsule with zero fillers. 9 authorised EU/UK health claims including normal muscle function. Widely used as a muscle cramp supplement UK, muscle tension support and leg cramp supplement — educational context only. Food supplement — not a medicine.
Mag-Lock is formulated specifically for muscle health, muscle tension support and muscle cramp support. Magnesium glycinate is a chelated form of magnesium — magnesium ions bound to the amino acid glycine — chosen for its superior gastrointestinal tolerance and absorption compared to oxide, carbonate and sulphate forms. Zero fillers. Vegan HPMC capsule shell only.
Order Mag-Lock Magnesium Glycinate 650mg capsules direct from chargeproducts.co.uk or via our official eBay store → Same-day dispatch before 3:30pm Monday to Friday. Free UK delivery on orders over £10. Letterbox friendly.
⚠️ THE UK MAGNESIUM PROBLEM — WHY SO MANY PEOPLE ARE LOW
Research consistently shows that a significant proportion of UK adults do not reach the recommended magnesium intake from diet alone. The NHS Reference Nutrient Intake is 300mg per day for men and 270mg for women. According to the UK National Diet and Nutrition Survey (NDNS), when intake is measured against optimal physiological function levels, around 60% of the UK population fails to meet recommended magnesium intake. This is not rare — it is the majority.
🌱 Soil depletion: Decades of intensive farming have stripped magnesium from agricultural soil. Food grown today contains significantly less magnesium than the same crops did 70 years ago. You cannot always get what you need from diet alone — regardless of how healthy you eat.
🍞 Processed foods: Modern diets high in refined grains, processed foods and sugar are low in magnesium. Refining wheat into white flour removes the magnesium-rich bran and germ. The more processed the diet, the lower the magnesium intake.
💊 Medication depletion: Long-term use of proton pump inhibitors (omeprazole, lansoprazole), diuretics and some diabetes medications can deplete magnesium. A significant portion of the UK adult population takes one or more of these medications daily.
🏃 Exercise demand: Physical activity increases magnesium loss through sweat and urine. Athletes and regularly active people can require 10–20% more magnesium than sedentary individuals — yet are typically eating lower-calorie, more restrictive diets.
Sources: UK National Diet and Nutrition Survey (NDNS) · NHS Reference Nutrient Intake guidelines · Educational context only. Food supplement — not a medicine.
When muscle tension, persistent tightness or leg cramps are being experienced, sub-optimal magnesium intake is one of the first physiological mechanisms to consider — because magnesium is directly involved in the muscle relaxation pathway. Educational context only — this is not a disease claim. Consult your GP if you experience persistent or severe symptoms. Food supplement — not a medicine.
Magnesium, Muscle Cramps & Normal Muscle Function — How It Works
Educational context only. Authorised claims stated exactly below. Food supplement — not a medicine.
✅ THE 9 AUTHORISED EU/UK HEALTH CLAIMS FOR MAGNESIUM
Exact wording as authorised under retained Regulation EC No 1924/2006. These are the only claims we make for Mag-Lock:
💪 Muscle Function
"Magnesium contributes to normal muscle function"
🧠 Nervous System
"Magnesium contributes to normal functioning of the nervous system"
🧘 Psychological Function
"Magnesium contributes to normal psychological function"
💪 Tiredness & Fatigue
"Magnesium contributes to the reduction of tiredness and fatigue"
⚡ Energy Metabolism
"Magnesium contributes to normal energy-yielding metabolism"
⚖️ Electrolyte Balance
"Magnesium contributes to normal electrolyte balance"
🏗️ Protein Synthesis
"Magnesium contributes to normal protein synthesis"
🦴 Bone Maintenance
"Magnesium contributes to the maintenance of normal bones"
🦷 Teeth Maintenance
"Magnesium contributes to the maintenance of normal teeth"
Authorised under retained Regulation EC No 1924/2006. Food supplement — not a medicine.
First-Time Buyer Guide
Start with 60 capsules
Ideal first purchase — same zero-filler 650mg formula as the larger sizes. Move up to 120 or 180 once happy.
Take 2 capsules daily
2 capsules = 170mg elemental magnesium = 45% NRV. Take with food — magnesium glycinate is gentle on the stomach even without food.
Take at bedtime
We recommend 2 capsules at bedtime. Magnesium glycinate is gentle on the stomach and well-suited to evening use — supporting normal muscle function through the night.
Full Product Specification
How to Take
Take 2 capsules daily with food and a full glass of water. We recommend taking both capsules at bedtime — magnesium glycinate is gentle on the stomach and is well-suited to evening use, supporting normal muscle function through the night. Do not exceed the recommended daily intake.
Storage: Store in a cool dry place away from direct sunlight. Keep the pouch sealed between uses. Food supplement — not a medicine.
Where to Buy Mag-Lock Magnesium Glycinate UK
WHOLESALE · TRADE · BULK · B2B
Magnesium Glycinate Wholesale UK · Bulk Supplier Since 2016
Mag-Lock and our full Magnesium Glycinate range are available wholesale and in bulk from UK-held stock with same-day dispatch. Supplying supplement brands, gym chains, health retailers, FBA sellers and white-label buyers.
📦 Bulk Pack Sizes
60 · 120 · 180 capsules retail formats. Contact us for bulk unpackaged quantities and bespoke formats.
🏷️ White / Private Label
White-label and private-label available on request for qualifying trade buyers. Same in-house quality.
📋 COA & Documentation
Certificate of Analysis and full product documentation available for trade buyers on request.
⚡ Same-Day UK Dispatch
All stock UK-held. Same-day dispatch before 3:30pm Monday to Friday. No import delays.
Buy magnesium glycinate wholesale UK · bulk magnesium glycinate UK · magnesium glycinate supplier UK · wholesale muscle support supplement UK · bulk magnesium capsules UK · magnesium glycinate trade supply UK — in-house manufactured, UK stock, est. 2016, Co. No. 11645389.
Enquire About Wholesale →Related Products
Frequently Asked Questions
How much elemental magnesium is in each capsule?
650mg Magnesium Glycinate provides 85mg elemental magnesium per capsule — 23% NRV. At 2 capsules per day: 170mg elemental magnesium — 45% NRV. EU/UK NRV = 375mg.
Why is Mag-Lock specifically positioned for muscle cramps and tension?
Mag-Lock is built around the authorised EU/UK claim that magnesium contributes to normal muscle function — and the well-established mechanism by which magnesium supports the relaxation phase of the muscle contraction cycle. The name Mag-Lock refers to the locked, rigid sensation of muscle tension — and magnesium's role in the calcium-magnesium relaxation pathway. Educational context only — food supplement — not a medicine.
How does magnesium contribute to normal muscle function?
Magnesium is required for the relaxation phase of the muscle contraction-relaxation cycle — competing with calcium at receptor sites and supporting re-uptake into the sarcoplasmic reticulum. It is also an essential cofactor for ATP (Mg-ATP), the energy molecule required for muscle contraction. Educational context — not a disease claim. Food supplement — not a medicine.
What are the 9 authorised magnesium claims?
Normal muscle function · normal nervous system function · normal psychological function · reduction of tiredness and fatigue · normal energy-yielding metabolism · normal electrolyte balance · normal protein synthesis · maintenance of normal bones · maintenance of normal teeth. All authorised under retained Regulation 1924/2006.
Are there any fillers?
No. 650mg Magnesium Glycinate and a vegan HPMC capsule shell only. Zero fillers, zero binders, zero anti-caking agents.
What is magnesium glycinate?
Magnesium glycinate (CAS 14783-68-7) is a chelated form of magnesium where magnesium ions are bound to two molecules of glycine — an amino acid. Chelation improves gastrointestinal tolerance significantly compared to oxide and carbonate forms, and reduces the laxative effect associated with higher magnesium doses.
Is this suitable for vegans?
Yes — HPMC plant-derived capsule shell, no gelatin, no fillers.
What sizes are available?
60 · 120 · 180 capsules. Free UK delivery on orders over £10.
Do you offer free UK delivery?
Yes — free UK delivery on orders over £10. Same-day dispatch on orders placed before 3:30pm Monday to Friday. Letterbox friendly resealable pouch.
What is your return policy?
30-day hassle-free returns. Contact us via chargeproducts.co.uk/pages/contact for return instructions.
Can I take Mag-Lock with other supplements?
Consult your GP before combining with other supplements or medications. Magnesium may interact with certain antibiotics and bisphosphonates — take at least 2 hours apart if prescribed these. Food supplement — not a medicine.
Is this available wholesale?
Yes — available wholesale and in bulk. White-label available on request. Contact chargeproducts.co.uk/pages/contact for trade pricing, MOQ and COA.
Is this a medicine?
No. Food supplement only — not a licensed medicine. Not intended to diagnose, treat, cure or prevent any disease or medical condition.
Where is Mag-Lock made?
In-house at our own facility at Unit 1, 8 Towerfield Road, Towerfield Industrial Estate, Southend-on-Sea, Essex SS3 9QE. 5 Star Food Hygiene Rating. 161,000+ verified sales. Big Idea Services Ltd, Company No. 11645389.
Is this letterbox friendly?
Yes — resealable food-grade pouch fits through a standard UK letterbox.
What Our Customers Say
"I've been buying from Charge for about 7 or 8 years by now, and I can assure you everything I've bought is high quality with prompt delivery."
Long-term customer · GB · ✓ Verified
"Been ordering from you for years and recommending you — your service, delivery, packaging and product are of high standards."
Returning customer · GB · ✓ Verified
"Ultra fast delivery and good quality product. Consistently high quality every time."
Verified UK buyer · GB · ✓ Verified
📚 Published Literature — Educational Context Only
Not health claims. Food supplement — not a medicine.
Volpe SL. (2013) — Magnesium and the Athlete · Current Sports Medicine Reports · 14(4):279–283
PubMed 24490070 → · Review of magnesium's role in muscle function, energy metabolism and exercise — educational context onlyde Baaij JHF et al. (2015) — Magnesium in Man: Implications for Health and Disease · Physiological Reviews · 95(1):1–46
PubMed 24790188 → · Comprehensive review of magnesium physiology including ATP-magnesium complex and muscle cell function — educational context onlySchwalfenberg GK & Genuis SJ. (2017) — The Importance of Magnesium in Clinical Healthcare · Scientifica · 2017:4179326
PubMed 29093983 → · Review of magnesium forms, bioavailability and tolerance — educational context onlyWHY BUY FROM CHARGE PRODUCTS
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