Magtein®

Minerals

Brand: NOW

CapsuleMineralOff Market
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Net Contents

90 Veg Capsule(s)

Serving Size

3 Veg Capsule(s)

Servings Per Container

30

Supplement Form

Capsule

Bar Code (UPC/SKU)

7 33739 02390 2

Product Version

CODE 2390 V3

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.

4Dietary Attributes

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

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: 3 Veg Capsule(s) · 1 per day

IngredientAmount Per Serving% Daily Value
Magnesium(Magtein Magnesium L-Threonate)144 mg36%
Magtein2 Gram(s)

Not Present

Other Ingredients

CelluloseRice FlourMagnesium StearateSilica

Target Groups

VeganVegetarianAdult (18 - 50 Years)Gluten FreeDairy Free

Label Claims

All OtherStructure/Function

Directions & Suggested Use

Suggested/Recommended/Usage/Directions

Suggested Usage: Take 3 capsules daily in divided doses (take 1 capsule during the daytime, preferably in mid-afternoon and take 2 capsules one hour before sleep).

Warnings & Precautions

Precautions re: All Other

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 or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.

Formulation

Formula re: Contains

Magnesium L-Threonate

Formulation re: Vegetarian/Vegan

Vegetarian/Vegan

Formulation re: Does NOT Contain

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

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.

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

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.

General Statements: All Other Content

Natural color variation may occur in this product.

General Statements: All Other Content

CAPSULE SIZE

General Statements: All Other Content

Cognitive Support*

General Statements: All Other Content

~ Supports Memory and Learning ~ Promotes Brain Health

Seals/Symbols

Non-GMO

General Statements: All Other Content

Family owned since 1968.

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

Magtein is a trademark of Magceutics, Inc. and is distributed exclusively by AIDP, Inc. Magtein is protected under US patents 8,178,118; 8,142,803; 8,163,301; and other pending patents.

General Statements: All Other Content

General Health

Seals/Symbols

GMP QUALITY ASSURED

General: Product/Version Code

CODE 2390 V3

Manufacturer & Distributor

Manufacturer

NOW Foods

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

Market Reference

$1.55 – $144.99· 40 listings
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  • NOW Foods Magtein Powder

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    $39.31
  • NOW Magtein Magnesium L-Threonate

    Fuelsupplements.com4.6(17)
    $58.50
  • NOW Foods, Magtein , L-треонат магния в порошке, 91 г (3,2 унции)

    iHerb4.8(60)
    $36.74
  • 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 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.

  • The Vitamin Shoppe

    4.3 (190)

    Vitamin & supplements store

    11985 Washington St Unit #1, Denver, CO 80233

  • Hybrid Nutrition

    5.0 (45)

    Vitamin & supplements store

    12910 Zuni St #500, Westminster, CO 80234

  • COLORADO DISCOUNT NUTRITION

    5.0 (849)

    Vitamin & supplements store

    1250 E 104th Ave, Thornton, CO 80233

  • Supplement Giant

    5.0 (306)

    Vitamin & supplements store

    8747 Sheridan Blvd, Westminster, CO 80003

  • COLORADO DISCOUNT NUTRITION

    5.0 (1069)

    Vitamin & supplements store

    6975 W 88th Ave F, Westminster, CO 80021

  • Nutrition Company Westminster

    4.9 (175)

    Vitamin & supplements store

    5160 W 120th Ave Ste D, Westminster, CO 80020

  • Peptides and SARMS

    4.9 (609)

    Vitamin & supplements store

    17928 Cottonwood Dr, Parker, CO 80134

  • Colorado Discount Nutrition

    5.0 (699)

    Vitamin & supplements store

    1945 S Sheridan Blvd Unit 103, Denver, CO 80227

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 2016-02-23. DSLD Label ID: 56911. 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.