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🧩 Upgrade your mind & rest — because your brain deserves the best!
Momentous Magtein Magnesium L-Threonate delivers 145mg of a unique magnesium compound clinically shown to cross the blood-brain barrier, supporting enhanced cognitive function, memory, focus, and quality sleep. NSF Certified for Sport and free from GMOs and gluten, this 30-serving supplement is designed for adults seeking scientifically-backed brain and sleep support with clean, athlete-trusted ingredients.











| ASIN | B09WWK4R2C |
| ASIN | B09WWK4R2C |
| Age Range Description | Adult |
| Best Sellers Rank | #6,557 in Health & Household ( See Top 100 in Health & Household ) #135 in Magnesium Mineral Supplements |
| Brand Name | Momentous |
| Customer Reviews | 4.5 4.5 out of 5 stars (734) |
| Date First Available | March 30, 2022 |
| Department | All Ages, Unisex |
| Flavor | Unflavored |
| Global Trade Identification Number | 00850030796042 |
| Manufacturer | Momentous |
| Manufacturer | Momentous |
| Manufacturer Part Number | 7015 |
| Primary Supplement Type | Magnesium |
| Product Dimensions | 1.77 x 1.97 x 2.76 inches; 4.16 ounces |
| UPC | 850030796042 |
| Unit Count | 30 Count |
L**J
Nothing Works for Sleep Except This
I have ADHD and cortisol dysregulation. I have a next to impossible time getting to sleep without taking something that makes me groggy or feel off the next morning (i.e. NyQuil). I also hate taking NSAIDs every day, but ibuprofen also really helps. I have started taking this magnesium religiously before bed. I don’t sleep perfectly, but it’s the only product that consistently relaxes my body and helps me get to sleep. I accidentally took Momentous’s Magnesium Malate a few nights ago thinking it was this and I slept horribly. The magnesium Malate is helpful not in a larger dose at bedtime. All the years of advice to take Magesium Glycinate before bed and it almost never did anything unless it was stacked with 4 other supplements. I will continue to purchase Momentous’s Magnesium L-Threonate. I am now a believer.
R**E
Give it a chance! Love it!
I really am liking this product. I take it and within 30 minutes I’m settling down, and within an hour I’m falling asleep. Gently. I wake up on the night to use the restroom. Thinking I’m wide away. Nope. Lay back down. Just close my eyes and next thing I know it’s time to get up for the day. I’m still on the first bottle. This worked for me from day 1. I would recommend being patient with this. Take it daily an hour if you can before bed. Make sure to wind down for bed. Get comfy. Also work on relaxing your mind as best you can. You will think you are wide awake, but you aren’t. There are still times I can’t sleep quickly due to caffeine intake or heavy exercise etc. but this product works still on deep quality sleep once I fall asleep. Love this product
T**M
Works for me!
I've been battling sleep disruption for years due to perimenopause. I heard about this product on a Stacy Sims' podcast. This is the best OTC product I've ever taken for sleep. I take diphenhydramine hydrachloride (brand names are Simply Sleep & Benadryl - it's a sedating antihistamine) when I travel because it's cheap and easy to find, but prefer natural methods when I'm at home. This is mineral based, and I get good and sleepy within an hour and doze blissfully at night. I like the clean ingredients, and yes it's pricey, but worth it for a good night's sleep with no morning brain fog!
M**N
Restful sleep, easy on stomach
I've been using Magnesium Magnite and have had a really positive experience. I fall asleep more easily and wake up feeling more rested. Also, appears to be gentle on my stomach (only been 2 weeks), and I find the capsules really easy to swallow.
F**N
Magteen Magnesium for sleep
The first week of use, these helped me fall asleep within 30 minutes. However, the don’t keep me sleeping. I woke up after a few hours consistently. They don’t work as well for falling asleep after a couple of weeks but still help. The bottle has a lot of loose powder in it, which I assume, came from inside the capsules. Capsules are fairly large.
M**S
Relaxing and calming
I originally started using this for my migraines, but the added benefit was the restful sleep. It makes me get pretty sleepy and relaxed, I compare it to melatonin. I am a dietitian and I recommend it to my clients who are looking for magnesium.
S**N
Great Addition to My Daily Routine
I’ve been really happy with this magnesium supplement. It’s easy to take, and I like that it’s designed to support sleep, focus, and overall brain health. Great addition to my daily routine!
J**C
Great product
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D**S
Too good product
It works. Everybody should give it a try. It is the basic foundational supplement you need for your brain and sleep.
C**N
Bad product
Just gave me náuseas and felt more tired , I felt really awfull
M**Y
Great and clean product.
Excellent product, been using it for over a year, and it does have great effect on a sound sleep as well.
M**K
Fast and reliable delivery.
great supplement, amazing sleep after this. Thank you!
Trustpilot
5 days ago
2 weeks ago