

🧩 Elevate your mind, rest like a pro, and join the brain health revolution!
Sports Research® Magnesium L-Threonate Capsules deliver 2000mg of patented Magtein®, a highly absorbable form of magnesium proven to cross the blood-brain barrier. Designed to support brain health, memory, focus, and restful sleep, these vegan, non-GMO, and gluten-free capsules are manufactured in the USA under strict quality standards. With 90 easy-to-swallow capsules per bottle, this supplement is a trusted choice for professionals seeking cognitive edge and better sleep.



















| ASIN | B0B336FCWC |
| Age Range Description | Adult |
| Allergen Information | Gluten Free |
| Best Sellers Rank | #1,525 in Health & Household ( See Top 100 in Health & Household ) #36 in Magnesium Mineral Supplements |
| Brand | Sports Research |
| Brand Name | Sports Research |
| Customer Reviews | 4.7 out of 5 stars 1,934 Reviews |
| Diet Type | Gluten Free |
| Flavor | Unflavored |
| Item Form | Capsule |
| Item Volume | 800 Milliliters |
| Item Weight | 2000 Milligrams |
| Manufacturer | Sports Research |
| Material Type Free | GMO Free, Gluten Free, Vegan Friendly |
| Number of Items | 1 |
| Primary Supplement Type | Made with Magtein |
| Product Benefits | Brain Health, Memory Health, Sleep Support |
| UPC | 023249091516 |
| Unit Count | 90.0 Count |
Y**P
Life-changing for my sleep.
I’ve struggled with insomnia for years and have tried so many different supplements with little to no success. After taking Sports Research® Magnesium L-Threonate, I finally noticed a real difference. My sleep feels deeper, and I fall asleep faster instead of lying awake for hours. I also wake up feeling more rested and less groggy, which has been a huge plus. The capsules are easy to take, and I haven’t experienced any negative side effects. If you’ve been dealing with long-term sleep issues like I have, this is definitely worth trying. It’s been a game changer for me.
S**M
Love this brand.
Love this brand- very reputable. You’ll live it too. Excellent product. Easy to use. Good quality. Exactly as seen on photos. I highly recommend. Great value
N**R
Life-Changing Magnesium — Better Sleep & Better Mood!
I’ve been taking these Sports Research Magnesium L-Threonate capsules for about 4 months now, and they are honestly amazing. I originally bought them to help with sleep, and they’ve made a huge difference — I fall asleep easier, stay asleep longer, and wake up feeling more rested instead of groggy. What I didn’t expect was how much they would also improve my mood. Since taking these consistently, I feel calmer, more balanced, and less stressed throughout the day. It really feels like my brain and body just function better on this form of magnesium. This formula absorbs well, doesn’t upset my stomach, and the capsules are easy to take. I’ve tried other types of magnesium, but none of them have worked nearly as well as Magtein. If you’re looking for something to support sleep, focus, or mood, I highly recommend giving these a try. They’ve made a noticeable difference for me, and I’ll definitely keep taking them!
T**E
Works great
Love this product, I have had more energy and I don't feel like I have brain fog, I'm also starting to get better sleep
B**E
Easy to take and good quality
This has been easy to add to my daily routine. The capsules are easy to swallow and don’t upset my stomach. I like that it’s a high-quality form of magnesium.
K**W
Happy with the cognitive effects
I'm a woman in my early 50's. I started taking this in hopes of helping my cognitive function. I do feel like it has helped my clarity and memory. Not sure that it has had any effect on my mood or sleep quality, but my primary focus was the cognitive portion, which I am happy with. I would recommend giving it a try. The price is quite steep, so I will only buy it when it's on a decent sale, otherwise it's too expensive for me. Function wise I give it a 5, but I had to subtract a star because of the steep price.
J**B
Knocks me out fast — just don’t mix with wine
This magnesium L-threonate works extremely well for me. Within about 20 minutes of taking it, I feel super relaxed and sleepy, and I sleep incredibly well through the night. It’s one of the best sleep supplements I’ve tried. One thing I did notice is that if I have wine or alcohol the same evening, my sleep becomes much lighter and not nearly as restful, even when I take this. On nights without alcohol, the sleep quality is deep and very refreshing. The capsules are easy to swallow. It says take 3 but I take 2. If you’re looking for something to help you fall asleep quickly and get truly restful sleep, this has been excellent!
M**R
Easy to take, quality product
Decent price, easy to swallow. No complaints.
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