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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

$35.19

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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:
Content on this site is for reference purposes only. Target does not represent or warrant that the nutrition, ingredient, allergen and other product information on our Web or Mobile sites are accurate or complete, since this information comes from the product manufacturers. On occasion, manufacturers may improve or change their product formulas and update their labels. We recommend that you do not rely solely on the information presented on our Web or Mobile sites and that you review the product's label or contact the manufacturer directly if you have specific product concerns or questions. If you have specific healthcare concerns or questions about the products displayed, please contact your licensed healthcare professional for advice or answers.
The above item details were provided by the Target Plus™ Partner. Target does not represent or warrant that this information is accurate or complete. On occasion, manufacturers may modify their items and update their labels.
We recommend that you do not rely solely on the information presented. If you have a specific question about this item, you may consult the item's label, contact the manufacturer directly or call Target Guest Services at 1-800-591-3869.
If the item details aren’t accurate or complete, we want to know about it.

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 can be returned to any Target store or Target.com.
This item must be returned within 30 days of the date it was purchased in store, delivered to the guest, delivered by a Shipt shopper, or picked up by the guest.
See the return policy for complete information.

Additional product information and recommendations

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4.5 out of 5 stars with 382 ratings
4.2 out of 5 stars with 143 reviews
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
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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
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
Image

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
Image

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
Image

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?
5 out of 5 stars
11 October, 2021
originally posted on swansonvitamins.com
Image

Has helped a great deal

This is the right kind of magnesium for my husband and me, because it has helped with our moods! Don’t use magnesium citrate or you’ll have a completely different outcome, at the other end.
Debra C
Did you find this review helpful?
2 out of 5 stars
3 October, 2021
originally posted on swansonvitamins.com
Image

o‍

I heard this would help me sleep but I found no discernible difference in my sleep quality or duration after 3 weeks of taking the suggested dosage along with 2 other supplements.
Thomas C
Did you find this review helpful?
5 out of 5 stars
19 September, 2021
originally posted on swansonvitamins.com
Image

I like it

Helps me sleep without the stomach issues of other magnesium. Swanson is good on their shipping as well.
Ryan H
Did you find this review helpful?
5 out of 5 stars
19 September, 2021
originally posted on swansonvitamins.com
Image

Restock pls

I love it, I need a refill but can’t find it on the website now :(
Shelly F
Did you find this review helpful?

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