








💪 Elevate your energy & crush cramps with pure magnesium power!
21st Century mgO 400 mg Tablets deliver a potent dose of magnesium oxide essential for protein synthesis, nerve, and muscle function. With 90 unflavored tablets free from sugar, preservatives, and artificial additives, this USA-made supplement supports metabolism and daily vitality, making it a trusted choice for long-term wellness.













| ASIN | B004KKFVPA |
| Best Sellers Rank | #155,642 in Health & Household ( See Top 100 in Health & Household ) #2,077 in Magnesium Mineral Supplements |
| Brand | 21st Century |
| Brand Name | 21st Century |
| Customer Reviews | 4.4 out of 5 stars 142 Reviews |
| Flavor | Unflavored |
| Global Trade Identification Number | 00740985270721 |
| Item Form | Tablet |
| Item Weight | 0.21 Pounds |
| Manufacturer | 21st Century |
| Material Type Free | no artificial flavors,preservatives free,gluten free,sugar free,yeast free |
| Number of Items | 1 |
| Primary Supplement Type | Magnesium |
| Product Benefits | Metabolism |
| UPC | 740985270721 |
| Unit Count | 90 Count |
A**Z
Good quality product
Very happy with this product and excellent price plus it's made in the US!. Yipee! Will definitely buy again.
Y**L
Great
Use it for YEARS, 2 times a day. No more leg cramps.
S**D
The price is right
I started taking these after reading about how Magnesium helps prevent migraines. The price isn't bad and I only have to take one per day since they are 400mg tablets.
A**O
Si funcionaaaa
Con toda propiedad digo que esto es excelente, tengo una rectificación cervical y por esto y otras cosas tengo años sufriendo de dolores en el cuello, hombros, espalda, hasta el brazo. hace ya 3 meses lo tomo y el dolor de un 10 esta a un 4, mi movilidad ha mejorado muchísimo, estoy feliz, al punto de que he decidido solo tomar esto en lugar de la medicación que me había indicado el ortopeda, he sentido una notable mejoría con esto en comparación con la Pregabalina que tomaba y sin los efectos secundarios!!
M**N
Muy buena
Excelente calidad
M**A
K
Ok
A**E
very hard for me to swallow.
I keep choking on these every time I try to take them.
J**O
Good Product
Its a good product, but a bit spendy. The capsul's are cheaper .
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