Magtein®

Minerals

Brand: NOW

CapsuleMineralOff Market
Click to view full label

Net Contents

90 Veg Capsule(s)

Serving Size

1 Veg Capsule(s)

Servings Per Container

30

Supplement Form

Capsule

Bar Code (UPC/SKU)

7 33739 02390 2

Product Version

CODE 2390B V7

Label Analysis

Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.

2Active Ingredients

2 distinct active ingredients are disclosed in Supplement Facts.

100%Amount Transparency

Every active ingredient discloses a specific amount per serving.

1% Daily Value Coverage

1 ingredients report an established %DV per serving.

5Dietary Attributes

Label states: Vegan, Vegetarian, Non-GMO, Gluten-Free, Kosher.

This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.

Supplement Facts

Serving Size: 1 Veg Capsule(s) · 1 per day

IngredientAmount Per Serving% Daily Value
Magnesium144 mg34%
Magtein(Magnesium L-Threonate)2000 mg
Magtein(Magnesium L-Threonate)2 Gram(s)

Not Present

Other Ingredients

HypromelloseRice FlourStearic AcidSilicon Dioxide

Target Groups

VeganVegetarianAdult (18 - 50 Years)KosherGluten FreeDairy Free

Label Claims

NutrientAll OtherStructure/Function

Directions & Suggested Use

Suggested/Recommended/Usage/Directions

Suggested Usage: Take 3 capsules daily. Best when taken in divided doses (take 1 capsule in the morning and 2 capsules two hours before sleep).

Warnings & Precautions

Precautions re: Children

Caution: For adults only.

Precautions re: All Other

Like other magnesium products, Magtein may induce sleepiness, drowsiness or headaches at first. Reduce the dosage, consult a doctor or discontinue use if conditions persist for more than one week.

Precautions re: Pregnant or Nursing or Prescription Medications

Consult physician if pregnant/nursing, taking medication, or have a medical condition.

Precautions re: Children

Keep out of reach of children.

Precautions re: Allergies

Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.

Storage

Storage

Store in a cool, dry place after opening.

Formulation

Formula re: Contains

Magnesium (Mg) is an essential mineral best known for its role in bone and nervous system function. Recent research has demonstrated that it is also critical for normal brain health and normal cognitive function by maintaining the density and stability of neuronal synapses. However, most forms of Mg are not easily absorbed into the nervous system. Magtein is a patented form of Mg that readily crosses the blood-brain barrier for utilization in the brain. Laboratory studies indicate that Magtein supports brain health and may facilitate learning and memory, as well as a relaxed mood.

Formulation re: Other

Natural color variation may occur in this product.

Formula re: Contains

Magnesium L-Threonate

Formulation re: Other

Cognitive support Supports memory and learning Promotes brain health

Formulation re: Does NOT Contain

Non-GMO

Formulation re: Vegetarian/Vegan

Vegetarian/Vegan

Formula re: Kosher

Triangle K (Kosher)

Formulation re: Other

Made and quality tested in the USA with globally sourced ingredients.

Formulation re: Does NOT Contain

Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients.

FDA Statements

FDA Disclaimer Statement

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

FDA Statement of Identity

A Dietary Supplement

Other Label Statements

General Statements: All Other Content

This bottle is made from 100% PCR (post-consumer recycled) resin.

Seals/Symbols

GMP Quality Assured

Seals/Symbols

Triangle K (Kosher)

General Statements: All Other Content

General health Family owned since 1968.

Brand IP Statement(s) re: (c), (TM), (SM)

Magtein is a protected under a family of US patents, pending patents, and is protected worldwide. Magtein is a trademark of Magceutics, Inc. and distributed exclusively by AIDP, Inc.

Manufacturer & Distributor

Manufacturer

NOW FOODS

395 S. Glen Ellyn Rd., Bloomingdale, IL, 60108, USA

Market Reference

$1.55 – $144.99· 40 listings
  • Now Foods Magtein

    Vitacost.com4.8(8500)
    $35.07
  • NOW Foods Magtein Powder

    iHerb4.8(60)
    $36.74
  • NOW Magtein Magnesium L-Threonate

    Fuelsupplements.com4.6(17)
    $58.50
  • Magtein, 90 Vcaps by Now Foods (Pack of 2)

    Walmart - WFMed4.8(7400)
    $61.86
  • Now Foods Magtein Magnesium L-Threonate - 180 Capsules (2 x 90 Capsule Bottles) TWINPACK

    DPS Nutrition4.8(8500)
    $53.98
  • NOW Foods, Magtein , L-треонат магния в порошке, 91 г (3,2 унции)

    iHerb4.8(60)
    $36.74
  • NOW Magnesium Glycinate with BioPerine

    NOW4.8(5100)
    $29.99
  • NOW Magnesium Glycinate with BioPerine 180 Veg Capsules

    Vitacost.com4.8(5100)
    $18.36

Where to Buy Locally

Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.

Showing representative supplement & health retailers — search above for stores in your area.

  • ITL Health

    5.0 (37)

    Vitamin & Supplements Shop

    50 Broadway, London SW1H 0BL

  • RightNutri

    4.9 (78)

    Vitamin & Supplements Shop

    26 Queenstown Rd, London SW8 3RX

  • The Pure Supplements

    5.0 (3)

    Vitamin & Supplements Shop

    Capital Business Centre, 22 Carlton Rd, South Croydon CR2 0BS

  • Midland Fitness and Nutrition ( Midland Supplements)

    4.8 (23)

    Health food shop

    818 Bristol Rd S, Northfield, Birmingham B31 2NS

  • Liberty Supplements

    4.5 (59)

    Sports Nutrition Shop

    344 High Rd, Wembley HA9 6AZ

Research & Studies

  • Magnesium L-Threonate for Sleep: The New Clinical Evidence

    WMI Best - smartersupplementreviews.com

    … is everywhere right now — from Huberman’s sleep stack to premium supplement shelves. Its … This study was funded by Threotech, the global Magtein patent licensor, which was also …

  • Reverse cognitive decline and restore your brainpower with tomorrow's answer to Alzheimer's disease

    M Cagan - Health Sciences Institute, 2014 - ze.dk

    … And tests show that Magtein increased magnesium levels in lab … And, now, studies show that Magtein helps restore cognitive … And what those fresh, healthy brain cells need now is …

    20142 citations
  • The effects of magnesium L-threonate (Magtein®) on cognitive performance and sleep quality in adults: a randomised, double-blind, placebo-controlled trial

    AL Lopresti, SJ Smith - Frontiers in Nutrition, 2025 - frontiersin.org

    … of magnesium supplementation (in the form of Magtein ® ) on cognition in healthy young-to-… of ceiling effects from magnesium supplementation in cognitively intact, healthy young-to-…

    202513 citations
  • Magnesium Glycinate vs Oxide vs Threonate (2026)

    Q Answer, WFSY Take - yourhealthier.com

    … Magnesium L-threonate (patented as Magtein) is the only supplemental form demonstrated … manufactures and sells the supplements discussed in this article. All health claims are based …

  • Best Magnesium Supplements for Men: A No-BS Guide for Sleep, Anxiety, and Recovery

    D Reyes - happierfit.com

    … $8-12/bottle from a reputable brand (NOW Foods, Doctor’s Best) will get more … Health is 350mg of supplemental elemental magnesium per day — but this is specifically for supplemental …

  • Kalman.“A Randomized, Double-Blind, Placebo-Controlled, Comparator Trial Evaluating Mag-tein® Magnesium Supplement on Quality of Life as Related to …

    SJ Hewlings, S Douglas - EC Nutrition, 2022 - researchgate.net

    … The purpose of this study to examine the effects of Magtein® on stress, anxiety, and and quality off life indication in this group of participants. This manuscript contains previously …

    202210 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2024-06-20. DSLD Label ID: 313615. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.