From the Manufacturer's Label:
Award-winning Natural Calm is the best-selling ionic magnesium supplement in the natural products market.
Manufactured by Natural Vitality
About Puritan’s Pride
For more than 40 years, Puritan's Pride has helped families achieve a lifestyle of wellness. Our vitamins and supplements are made with care from the highest quality ingredients. They are tested or inspected as many as 15 times throughout the manufacturing process. That's why you can shop with confidence. We take pride in our products and helping customers feel their best.
Gluten Free. Contains no yeast, dairy, egg, soy, wheat, sugar, starch, preservatives or artificial color or flavor. No added fructose. Cruelty free.Vegan.GMO Free