Perque Magnesium Plus Guard delivers magnesium in multiple fully reacted, highly bioavailable forms — addressing the broad range of physiological functions that require magnesium including energy production (ATP synthesis requires magnesium), muscle relaxation, cardiovascular function, sleep, blood sugar regulation, and nervous system support. The multi-form approach provides comprehensive absorption across different metabolic pathways. 180 capsules.Magnesium Glycinate provides the highest GI tolerability for sensitive individuals and is the preferred form for sleep, anxiety, and nervous system support. Magnesium Malate provides substrate for the citric acid cycle (Krebs cycle) — preferred for energy and fatigue support. Magnesium Taurate provides cardiovascular and neurological support through the taurine co-factor. Magnesium Ascorbate provides Vitamin C synergy. All forms are fully reacted per Perque's standard. Perque is a physician-grade clinical nutrition brand founded by integrative medicine pioneer Dr. Russell Jaffe, M.D., Ph.D., known for using only the highest-bioavailability nutrient forms (fully reduced, fully reacted) and rigorous quality standards. Available at Beauty Riche with same-day shipping.