Nutricost Magnesium Citrate Powder (Unflavored, 500 Gram) (Pack of 2)

What the brand says

Nutricost's Magnesium Citrate Powder offers a convenient way to consume pure or flavored high quality magnesium citrate. Nutricost's Magnesium Citrate powder is Non-GMO, Gluten Free and proudly made in the USA.