From the Manufacturer's Label:
Magnesium Malate is a compound of magnesium and malic acid. Malic acid is a natural fruit acid that is present in most cells in the body and is an important component of numerous enzymes key to ATP synthesis and energy production.
Manufactured by Source Naturals
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.
Contains no yeast, dairy, egg, gluten, corn, soy or wheat. Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance