Research Verified Magnesium Complex has been scientifically formulated to support the body and help address the symptoms relating to a Magnesium deficiency. It contains 4 types of Magnesium (Magnesium Bisglycinate, Malate, Citrate, and Oxide) to help boost levels while supporting maximum absorption. This extra-strength formula also includes Vitamin B6, which has been shown to help improve the effectiveness of Magnesium. The addition of BioPerine, a bioavailability enhancer, aims to assist absorption and improve results. Non-GMO, third-party tested, and GMP-certified.