Olympia Flash Sale! 24-hour legendary deals on protein, creatine, pre-workout, and more.
7 Day Customer Support
  • Live Chat
  • 1-800-537-9910
USD
Magtein

NOW Foods Magtein

A Product
Patented Support for Your Brain Health and Memory!
  • Supports memory and learning*
  • Promotes brain health*
  • 90 veg capsules per bottle
  • Non-GMO, vegan/vegetarian, kosher and soy free
M&S Rewards Logo
Muscle & Strength Rewards

Earn 2 points for every dollar you spend at Muscle & Strength! Spend your points on order discounts, fitness gear and exclusive products.

M&S Promos and Deals Logo
Unbeatable Deals

We run the best deals and discounts on the biggest nutrition and fitness brands!

M&S Delivery Truck
Free Shipping on $99+ Orders*

Spend $99 to get FREE shipping in addition to our unbeatable deals! Plus, 100% money-back guarantee on every product we sell.

*USA Only. Excludes: AK, HI, orders above 25lbs and bulk orders.

Credit Card Logo for Refunds
60 Day Guarantee

Not happy with your purchase? No problem. Simply return it to us within 60 days and we'll replace it, credit your account, or give you a full refund.

Mobile Phone Logo
Contact Us

If you have any questions about products please call us on 1-800-537-9910 or email support@muscleandstrength.com

Deals
LIMITED TIME PRICE CUT
LIMITED TIME PRICE CUT
Buy 1 NOW Foods Magtein 90ct for only $29.99! Limited time only.
LIMITED TIME PRICE CUT
LIMITED TIME PRICE CUT
Buy 1 NOW Foods Magtein 180ct for only $59.99! Limited time only.
Buying Options
$43.99
$29.99 29.9900
90 VCaps
30 Servings | $1.00 Per Serving
LIMITED TIME PRICE CUT
+
$84.99
$59.99 59.9900
180 VCaps
60 Servings | $1.00 Per Serving
LIMITED TIME PRICE CUT
+
 
Secure Transaction
Nutrition Info

90 VCaps

Serving Size: 3 Veg Capsules
Servings Per Container: 30
Amount Per Serving
Amt
%DV
Magnesium (from 2,000 mg Magtein™ Magnesium L-Threonate)
144 mg
34%
Magtein™ (Magnesium L-Threonate)
2 g (2,000 mg)
* % Daily Value is based on a 2,000 calorie diet. Your daily values may be higher or lower based on your calorie needs.
† Daily Value (DV) not established.
Ingredients
Hypromellose (cellulose capsule), Rice Flour, Stearic Acid (vegetable source) and Silicon Dioxide.
Allergen Warning
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.

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).

For adults only. 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. Consult physician if pregnant/nursing, taking medication, or have a medical condition. Keep out of reach of children.

Directions
Warnings
Expand Info
Product Information

NOW Foods Magtein™ with patented form of Magnesium (Mg), Cognitive Support*

Take 3 NOW® Magtein capsules daily in divided doses (take 1 capsule during the daytime, preferably in mid-afternoon and take 2 capsules one hour before sleep). 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.*

  • MAGNESIUM L-THREONATE: NOW® Magtein™ is a patented form of Mg that readily crosses the blood-brain barrier for utilization in the brain.* 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).
  • COGNITIVE SUPPORT*/SUPPORTS MEMORY AND LEARNING*: Laboratory studies indicate that Magtein™ supports brain health and may facilitate learning and memory, as well as a relaxed mood.*
  • CLASSIFICATIONS/CERTIFICATIONS: Non-GMO, Vegan/Vegetarian, Soy Free, Dairy Free
  • GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation).
  • Packaged in the USA by a family owned and operated company since 1968.

Magnesium

Happy Healthy Now

NOW Family

NOW Mission Statement

NOW Core Values

Reviews
Overall Rating
4.8 out of 5 stars
Reviews (29)
Verified Buyers (29)
Review Graph
  • 5 star
    93%

  • 4 star
    0%

  • 3 star
    3%

  • 2 star
    0%

  • 1 star
    4%

Overall Rating
    Show More +
    Show Less -
User Image
Luke M
Increase Strength
Verified Buyer
Been seeing an improvement in my nighttime sleep quality like the product suggest. I’ve been able to wind down and stay asleep a lot longer. Especially with increased stress which has made quality sleep a bit tougher recently. Might not be the case for all, but so far I’m convinced. Worth a shot if you’ve been trying other sleep aids and none have worked.*
Was this helpful?
You found this not helpful
0 of 0 found this helpful
2025-10-08 11:10:22Z
Loading
Overall Rating
    Show More +
    Show Less -
User Image
João Ricardo R
Healthy Lifestyle
Verified Buyer
The best supplement for the functioning of the brain, for me!*
Was this helpful?
You found this not helpful
0 of 0 found this helpful
2025-07-12 14:39:51Z
Loading
Overall Rating
    Show More +
    Show Less -
User Image
howard b
Verified Buyer
bought on recommendation to calm a very busy mind. And boy does it work ! Best sleep for years with calm mind.... but can't take in day or just drift through the day with nay a care in the mind. Not good for a work day ! I buy from M&S as v competitive price and good delivery and service. Just feel guilty on air miles :(*
Was this helpful?
You found this not helpful
0 of 0 found this helpful
2025-05-15 17:18:41Z
Loading
Overall Rating
    Show More +
    Show Less -
User Image
Samantha H
Verified Buyer
A good product. I have definitely noticed my thinking being clearer*
Was this helpful?
You found this not helpful
0 of 0 found this helpful
2025-05-01 20:39:23Z
Loading
Overall Rating
    Show More +
    Show Less -
User Image
Judite C
Verified Buyer
Did see a massive change. Amazing product! Better than any regular magnesium on the market*
Was this helpful?
You found this not helpful
1 of 1 found this helpful
2025-02-06 16:55:04Z
Loading
Overall Rating
    Show More +
    Show Less -
User Image
Samantha H
Verified Buyer
Good product and efficient delivery. I have definitely noticed an improvement. My thinking is much clearer.*
Was this helpful?
You found this not helpful
1 of 1 found this helpful
2024-09-01 15:24:55Z
Loading
Overall Rating
    Show More +
    Show Less -
User Image
Vicente C
Increase Strength
Verified Buyer
It helps on cognition and sleep. Helps on preventing future diseases. *
Was this helpful?
You found this not helpful
1 of 1 found this helpful
2024-08-23 17:15:46Z
Loading
Overall Rating
    Show More +
    Show Less -
User Image
Iain A
Verified Buyer
Best magnesium product out there , top class ! I highly recommend it *
Was this helpful?
You found this not helpful
1 of 1 found this helpful
2024-07-28 19:54:52Z
Loading
Overall Rating
    Show More +
    Show Less -
User Image
Marilyn P
Healthy Lifestyle
Verified Buyer
Every jar contains broken capsules and spilled powder, very sorry to say.*
Was this helpful?
You found this not helpful
0 of 0 found this helpful
2024-07-05 16:04:12Z
Loading
Overall Rating
    Show More +
    Show Less -
User Image
Hector A
Healthy Lifestyle
Verified Buyer
Excellent supplement that is necessary for the body, I recommend it.*
Was this helpful?
You found this not helpful
1 of 1 found this helpful
2024-06-29 12:36:58Z
Loading
Loading
* Muscle & Strength does not imply any medical claims from this review. There are no guarantees of specific results and results may vary.
* 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.

Which products should we notify you about?


  • Loading product choices...
Text Message Alert
+1