The product contains premium magnesium in a 100% reacted bisglycinate form. This form of magnesium is very well absorbed, meaning that a smaller dose achieves greater effectiveness. The capsule raw material is produced by the German company Dr. Paul Lohmann, which is known worldwide as a manufacturer of very high-quality minerals. In addition to its excellent absorption, magnesium bisglycinate is also known as a very well-tolerated form of magnesium.