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CLN Labs Magnesium Bisglycinate Capsules (Core Chelate) 120 caps

Lab verifiedLab: Eurofins Food Testing UKReport: 16 Dec 2025Batch: 202505048

About Magnesium Glycinate: what it is, forms and doses →

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MineralsUK seller✓ Lab verified

A 8.0/10 How we score →

Evidence note: The PDF has two pages: page 1 is the supplier’s raw-material certificate (Cambridge Commodities), not independent; page 2 is the independent Eurofins certificate for finished batch 202505048, which is what we use.

Lab report

Lab-test status
Lab verified16 Dec 2025Report
Lab
Eurofins Food Testing UK Ltd, Wolverhampton (UKAS 0342)
Eurofins certificate AR-25-UD-553513-01
Batch
202505048 (exp 07/05/2027)
Report date
16 Dec 2025
Heavy metals (mg/kg)
Pb 0.007 (well under the EU limit or below detection)Cd <0.001 (well under the EU limit or below detection)Hg <0.005 (well under the EU limit or below detection)As 0.005 (no EU limit)
Fillers
None
Heavy-metal colours: Well under the EU limit (below half) or below detection Near the EU limit (half the limit up to the limit) Over the EU limit Grey: no EU limit (arsenic), not tested, or the lab’s reporting limit is above the EU limitEU 2023/915 limits for food supplements: lead (Pb) 3.0, cadmium (Cd) 1.0, mercury (Hg) 0.10 mg/kg. Values in mg/kg. NT = not tested; c = calculated by us from µg per serving.
Ingredient
Magnesium Glycinate
Brand
CLN Labs
Testing rule for this category
Third-party testing preferred
Status detail
An independent lab report or certification is referenced for this product.
Reviewer notes
Eurofins UK (UKAS), Dec 2025: lead 0.007, cadmium <0.001, arsenic 0.005, mercury <0.005 mg/kg; only bisglycinate + HPMC capsule; label 11% Mg. UK seller only (no EU seller on file).
Product page
CLN Labs (clnlabs.co.uk, UK)

⚠ 1 red flag

  • Magnesium is not measured on the finished product (metals only on the independent certificate).

Purity & biohacker panel

Facts only, no scores. Lab: Eurofins Food Testing UK Ltd, Wolverhampton (UKAS 0342) · Eurofins certificate AR-25-UD-553513-01 · batch 202505048 (exp 07/05/2027) · dated 2025-12-16 (report age 11 months).

Cleanliness checks

Free of fillers and additivesYes
Only magnesium bisglycinate (Core Chelate) and the HPMC capsule; brand states no fillers, binders or flow agents · seller page
Full ingredient list publishedYes
Magnesium bisglycinate (Core Chelate), HPMC capsule · seller page
Lead (Pb)Yes
0.007 mg/kg (measured), EU supplement limit ≤ 3.0 · lab report
Cadmium (Cd)Yes
<0.001 mg/kg (below reporting limit), EU supplement limit ≤ 1.0 · lab report
Mercury (Hg)Yes
<0.005 mg/kg (below reporting limit), EU supplement limit ≤ 0.10 · lab report
Arsenic (As)Yes
0.005 mg/kg (measured), no specific EU limit · lab report
MicrobiologyUnknown
Not tested in published report · no source
PesticidesUnknown
Not tested in published report · no source
Label accuracy (measured vs claim)Unknown
Magnesium not measured on the finished product (label: 77 mg per 700 mg capsule, 11%). The supplier raw-material certificate in the same PDF gives 11.69%. · seller page

Biohacker parameters

Form
Magnesium bisglycinate capsules (700 mg) · seller page
Dose per serving
4 capsules a day = 308 mg magnesium (2,800 mg bisglycinate) · seller page
Elemental magnesium
11% (label: 77 mg per 700 mg capsule) · seller page
Servings per pack
30 days (120 capsules ÷ 4) · seller page
Price / cost per daily dose
£8.99 / 120 capsules (sale; regular £9.99) ≈ £0.30 per day at 4 capsules (calculated, checked 18 Oct 2026). No EU seller on file. · seller page
Branded ingredient
Yes (Core Chelate) · seller page
Sourced / made in
Unknown (CLN Labs, Kidderminster, UK) · seller page
Capsule material
HPMC (vegetable) · seller page
Allergens
None declared (not checked) · seller page
Vegan
Yes · seller page
Third-party certifications
Unknown (accredited lab report only) · no source
Report age
11 months · lab report

Unknown = not published or not verifiable. Prices from the linked seller page, checked 18 Oct 2026.

Testing evidence

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