From the Manufacturer's Label:
Certified vegan, gluten free
Natural ionic magnesium with trace minerals
Mega-Mag liquid mangesium is a rich, natural source of concentrated magnesium chloride with other minerals and trace elements that act as natural co-factors.
Manufactured by Trace Minerals
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.