Magnesium Breakthrough

While this product offers a high elemental magnesium yield (500mg) and includes beneficial forms like Bisglycinate and Malate, it also includes Magnesium Oxide, a low-bioavailability form often used as a filler. It lacks top-tier third-party certifications like NSF Certified for Sport or USP, and the proprietary nature of the blend prevents consumers from knowing the exact ratio of high-quality chelates versus cheaper salts.