Magtein® is the best-researched magnesium supplement for supporting brain function, memory, sleep and possibly concentration in ADHD. It is the only magnesium compound (Mg-L-threonate) that can cross the blood-brain barrier and thus act directly in the brain.

The clinical data are based on high-quality human studies (double-blind, randomized). Dosages can be panoramically determined from 1–2 g/day rated as effective and well tolerated:

🧠 1. Improved cognitive functions in healthy adults

• studyDouble-blind, placebo-controlled study, n = 109 healthy adults (18–65 years)
• formulation: Magtein® – Magnesium L-threonate combined with phosphatidylserine and vitamin C && D (you can also get all of this in our shop)
• dosage2 g/day
• Length of time30 days
• ResultSignificant improvement in all five subtests of a clinical memory test as well as in the overall memory quotient compared to the placebo group. https://aidp.com/2022/12/21/aidp-inc-announces-a-new-magtein-human-clinical-published-study-in-nutrients/

🌙 2. Sleep quality && daily function

• studyRandomized, double-blind, placebo-controlled
• Participant80 adults (35–55 years) with self-reported sleep problems
• dosage: 1 g/day magnesium L-threonate
• Length of time: 3 weeks
• Result:
  • Improved depth &REM sleep phases (measured via Oura ring)
  • Improved subjective values ​​(Insomnia Severity Index, daily energy, mood) https://www.nutraceuticalsworld.com/breaking-news/magnesium-l-threonate-improves-sleep-quality-clinical-study/

💤 3. Support for ADHD symptoms (piloted)

• Study designOpen pilot study (no control group)
• Participant15 adults with ADHD
• dosage2 g/day
• Length of timeup to 12 weeks
• ResultApproximately 50% showed improved concentration and reduced ADHD symptoms.

🧪 4.dosage && Bioavailability

• Effective elemental magnesium dose For cognitive effects: 108–144 mg/day – below the RDA (350–420 mg/day) https://europepmc.org/article/PMC/9786204?utm
• Special feature: Magnesium L-threonate increases magnesium levels in the brain and cerebrospinal fluid significantly more than other magnesium compounds. https://pmc.ncbi.nlm.nih.gov/articles/PMC9786204/?utm

⚠️ Instructions for use

• Very good tolerability at dosages <=2 g/day
• Effect: usually visible after 3–4 weeks of regular intake
• InteractionsNo known relevant drug interactions