Ancient Minerals Magnesium Bath Flakes Ultra with OptiMSM - Resealable Magnesium Supplement Bag of Zechstein Chloride with Proven Better Absorption Than Epsom Bath Salt (1.65 lb)

THE UTLRA FLAKES DIFFERENCE AND OPTIMSM: OptiMSM bath flakes contain the same high potency magnesium chloride concentration as our best-selling flakes, but also contains elemental sulfur that provides added benefits including joint and immune health support. Without sufficient MSM sulfur, your body cannot maintain an appropriate level of homeostasis and OptiMSM has earned the reputation for the purest, safest, and most consistent MSM in the world.