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Swanson Magnesium L-Threonate - Featuring Magtein 90 Veggie Capsules - 2 of 4Swanson Magnesium L-Threonate - Featuring Magtein 90 Veggie Capsules - 3 of 4Swanson Magnesium L-Threonate - Featuring Magtein 90 Veggie Capsules - 4 of 4
Swanson Magnesium L-Threonate - Featuring Magtein 90 Veggie Capsules - 1 of 4

Swanson Magnesium L-Threonate - Featuring Magtein 90 Veggie Capsules

$35.29

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About this item

Highlights

  • Only form of magnesium shown to cross the blood-brain barrier to promote optimum levels within the brain
  • Promotes learning and memory
  • Supports cognitive health
  • Vegan, Vegetarian
  • Per GMP guidelines set forth by the FDA, most products are formulated for 24 months from the date of manufacture. Liquids and probiotics are formulated for 12 months.

Description

Swanson Magnesium L-Threonate featuring Magtein® promotes healthy neuronal activity for the support of healthy cognitive function. Traditional solutions for cognitive support involve stimulating the neurons to promote peak brain function. But over time, this can lead to burnout and have the opposite effect. Magnesium L-Threonate works differently. Its patented form of magnesium nourishes the brain. Preliminary research suggests great potential for this magnesium—the only form known to readily cross the blood-brain barrier and function within the brain. Protect the power of your mind today with Magnesium L-Threonate from Swanson.
Suggested Age: Adult Use Only
Product Warning: Adult Use Only
Product Form: Capsule
Package Quantity: 90
TCIN: 1006440680
UPC: 087614027005
Origin: made in the USA or imported
Healthcare Disclaimer:
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Serving Per Container: in the Afternoon 1 Veggie Capsule

Amount Per Serving:

% Daily Value*
Magnesium 48mg
Veggle Capsule 2
Capsules
( from Magtein
L - threonate )
Magtein magnesium 670mg
L - threonate
* Daily Value not established . Jarion 1.34g
* Percentage of Daily Values are based on a 2,000 calorie diet.

Ingredients:

brown rice flour, hypromellose (vegetarian capsule), calcium palmitate.

Allergens & Warnings:

WARNING: For adults only. Consult your healthcare provider before using this or any product if you are pregnant or nurs- ing, taking medication or have a medical condition. Keep out of reach of children. Do not use if seal is broken.

Shipping details

Estimated ship dimensions: 3 inches length x 3 inches width x 5 inches height
Estimated ship weight: 0.27 pounds
item ships from third party seller: Pattern

Return details

This item cannot be returned; please reference our return policy for more information.
See the return policy for complete information.

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Guests are saying

This magnesium supplement, particularly in its threonate form, is praised for its ability to enhance memory, improve sleep quality, and support cognitive function. Many guests report noticeable benefits within a few days of use, including better mental clarity and reduced migraines. While some find it a bit pricey, the overall effectiveness and quality of the product make it a worthwhile investment for those seeking to boost their brain health and overall well-being.
    Summary created by AI from text of reviews reflecting recent feedback provided across different star ratings (includes incentivized reviews)
    4.2 out of 5 stars with 149 reviews
    5 out of 5 stars
    25 April, 2026
    originally posted on swansonvitamins.com
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    Magtein, Magnesium L-Threonate

    Received Magtein supplement. The capsule size is good, and easy to take. I like it. Thank you.
    ANITAL
    Did you find this review helpful?
    5 out of 5 stars
    13 April, 2026
    originally posted on swansonvitamins.com
    Image

    Game changer

    Swanson Magnesium L-Threonate with Magtein is a game-changer for anyone looking to sharpen their focus and improve overall cognitive clarity. I’ve noticed a significant boost in my mental energy and sleep quality since adding this high-quality supplement to my daily routine.
    CHARLESS
    Did you find this review helpful?
    5 out of 5 stars
    4 April, 2026
    originally posted on swansonvitamins.com
    Image

    High quality and helpful

    It's helping with memory and clear thinking. It started helping quite quickly. Very high quality magnesium and easy to swallow.
    TracyA
    Did you find this review helpful?
    5 out of 5 stars
    28 March, 2026
    originally posted on swansonvitamins.com
    Image

    Great product, but a bit expensive

    Magtein is a fantastic Magnesium product. It helps me sleep better each night and wake up feeling rested each morning.
    ELIZABETHP
    Did you find this review helpful?
    5 out of 5 stars
    23 March, 2026
    originally posted on swansonvitamins.com
    Image

    Sleep better with less digestive side effects

    There are many different forms of magnesium. However, the threonate version is easy on the digestive tract and may help you relax more at bedtime, so you can sleep better.
    BRUCEC
    Did you find this review helpful?
    5 out of 5 stars
    22 March, 2026
    originally posted on swansonvitamins.com
    Image

    Magtein is great!

    Magtein really works! It helps my husband and I with our sleep, memory, and cognition. The effects are quite significant. It is a little pricey but we'll worth it!
    SUSANS
    Did you find this review helpful?
    4 out of 5 stars
    19 March, 2026
    originally posted on swansonvitamins.com
    Image

    Good product. Frustrating marketing and ordering from website.

    Like product quality. Ordering online is a pain. Takes too much screen and phone time when special offers are not calculated into final charges. I always have call for the discounts. Time waster.
    BARRYA
    Did you find this review helpful?
    5 out of 5 stars
    16 March, 2026
    originally posted on swansonvitamins.com
    Image

    Great supplement

    I like this magnesium supplement. I take it In the morning
    MARCIAL
    Did you find this review helpful?
    5 out of 5 stars
    15 March, 2026
    originally posted on swansonvitamins.com
    Image

    Designed cross the blood-brain barrier

    I’ve been taking Swanson Magnesium L-Threonate for a while now. Most types of magnesium are great for the body, but this specific version is designed to actually cross the blood-brain barrier. Because of that, I have total peace of mind knowing that I’m giving my brain the exact mineral it needs to stay sharp, support my memory, and keep my cognitive health on track as I get older.
    ROBERTC
    Did you find this review helpful?
    5 out of 5 stars
    15 March, 2026
    originally posted on swansonvitamins.com
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    Magnesium is essential!

    Magnesium is an essential element in all our bodies! I take different versions of magnesium because they all affect different things!
    CURTISH
    Did you find this review helpful?
    5 out of 5 stars
    11 March, 2026
    originally posted on swansonvitamins.com
    Image

    Magtein is the best

    I could tell the difference by the 3rd day of use. No other magnesium works like Magtein.
    CARRIER
    Did you find this review helpful?
    5 out of 5 stars
    25 February, 2026
    originally posted on swansonvitamins.com
    Image

    (no review title)

    I had brain surgery 15 years ago and this helps tremendously keeping it functioning well. I can tell when I haven't taken it.
    SHEILAW
    Did you find this review helpful?
    5 out of 5 stars
    11 February, 2026
    originally posted on swansonvitamins.com
    Image

    Great Product

    It’s been very helpful and keeping Migraines away. It’s a great product worth every penny. I love it when I get them a little bit on sale on sale.
    MINDYO
    Did you find this review helpful?
    5 out of 5 stars
    4 February, 2026
    originally posted on swansonvitamins.com
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    Magnesium L- Threonate

    Easy to swallow gel caps. My doctor recommended this form of magnesium in the morning. It has made a difference in my health for my issues.
    AUDREYG
    Did you find this review helpful?
    5 out of 5 stars
    13 December, 2025
    originally posted on swansonvitamins.com
    Image

    (no review title)

    Improves sleep depth & lengthens time slept. UTube video comparing forms of magnesium stated this form shows best brain assimilation. I switched to this & I believe it is. It has helped me.
    DianneB
    Did you find this review helpful?
    1 out of 5 stars
    28 January, 2023
    originally posted on swansonvitamins.com
    Image

    Won't reorder this brand.

    Not sure how well it works but it tastes rancid. Maybe the brown rice component?
    MONICAB
    Did you find this review helpful?
    1 out of 5 stars
    21 May, 2022
    originally posted on swansonvitamins.com
    Image

    Tastes awful! Buy only Magtein brand.

    This stuff tastes awful! I have only used Magtein brand before, which is a little more expensive, but is tasteless. When I swallow this stuff, I have to quickly drink something to get the awful taste out of my mouth! Spend a little and buy only the Magtein brand-- you will be glad you did. Now, I only have to suffer through the other two bottles' worth-- I may just dump them and buy more Magtein brand...ugh...sigh.
    ErdieL
    Did you find this review helpful?
    1 out of 5 stars
    21 May, 2022
    originally posted on swansonvitamins.com
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    Less Magtein

    There is less Magtein in Swanson's L-Threonate than other brands but for the same price.
    KristeeS
    Did you find this review helpful?
    5 out of 5 stars
    20 November, 2021
    originally posted on swansonvitamins.com
    Image

    My must have

    I think this is fenomenal, I have been researching a good magnesium that wouldn’t give me a allergic reaction and I think I found it. I been taking this for month haven’t had a bad reaction yet
    CindyS
    Did you find this review helpful?
    3 out of 5 stars
    11 November, 2021
    originally posted on swansonvitamins.com
    Image

    null

    I really haven’t used it long enough to see a difference,but it is supposed to help mentally.
    Janet H
    Did you find this review helpful?

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