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GymBeam Magtein® (Magnesium L-threonate)

Lab verifiedLab: PLANTONReport: 8 Oct 2025Batch: L231497

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

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MineralsEU seller✓ Lab verified

Score Not enough data Label reviewed· 20/100 How we score →

Evidence note: Arsenic is not in the report.

Buy at GymBeam (gymbeam.com) (Ad)

Lab report

Lab-test status
Lab verified8 Oct 2025Report
Lab
PLANTON GmbH (DAkkS)
PLANTON GmbH (DAkkS) (2025-10-08; batch L231497; report PB_YBM081025-SD922-0033)
Batch
L231497
Report date
8 Oct 2025
Heavy metals (mg/kg)
Pb 0.010 (well under the EU limit or below detection)Cd <0.008 (well under the EU limit or below detection)Hg <0.010 (well under the EU limit or below detection)As NT (not tested)
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
GymBeam
Testing rule for this category
Third-party testing preferred
Status detail
An independent lab report or certification is referenced for this product.
Reviewer notes
Lab verified: PLANTON GmbH (DAkkS), 2025-10-08, batch L231497; Pb 0.010 mg/kg; Cd <0.008 mg/kg; Hg <0.010 mg/kg. Arsenic not tested. Evidence partner-gap-batch2-2026-11-03.
Product page
GymBeam (gymbeam.com) (Ad)

⚠ 1 red flag

  • Arsenic is not in the report.

Seller prices we checked

  • €39.95 · Pack: see shop · €39.95 per day at label dose · GymBeam (Ad) (EU seller). Price checked 2026-11-03.

We never mix € and £: each figure uses the seller’s own currency.

Potency & No Fillers Index

Label reviewed· 20/100

Scored from the published label — separate from lab verification. Never a safety claim.

Form
GymBeam Magtein® (Magnesium L-threonate)
Label checked
2026-11-03
  • Dose vs EU RI / studied band0/20
  • Form & bioavailability0/20
  • Fillers / binders / flow agents0/20
  • Additives (carriers etc.)10/10
  • Sweeteners / colours10/10
  • Transparency0/10
  • Price per effective dose0/10

HPMC / vegetable capsule shells are not counted as fillers. EUR and GBP are never converted. Missing label fields score 0 (never full marks). Grade A requires Lab verified — label-only products are capped at 85.

How the Index is scored →

Purity & biohacker panel

Facts only, no scores. Lab: PLANTON GmbH (DAkkS) · PLANTON GmbH (DAkkS) (2025-10-08; batch L231497; report PB_YBM081025-SD922-0033) · batch L231497 · dated 2025-10-08 (report age 13 months).

Cleanliness checks

Free of fillers and additivesUnknown
See seller label · seller page
Full ingredient list publishedUnknown
Seller page · seller page
Lead (Pb)Yes
0.010 mg/kg, EU supplement limit ≤ 3.0 · lab report
Cadmium (Cd)Yes
<0.008 mg/kg, EU supplement limit ≤ 1.0 · lab report
Mercury (Hg)Yes
<0.010 mg/kg, EU supplement limit ≤ 0.1 · lab report
Arsenic (As)No
Not reported in the published PDF · lab report

Biohacker parameters

Report age
13 months · lab report

Unknown = not published or not verifiable. Prices from the linked seller page, checked 3 Nov 2026.

Testing evidence

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