The same high potency magnesium chloride as our best-selling magnesium bath flakes, but with elemental sulfur. Ancient Minerals® magnesium bath flakes ultra, utilize premium distilled OptiMSM® and pure magnesium chloride. 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.

• Ideal for children and other sensitive individuals
• Effective for stress relief and relaxation
• Great for soaking muscles and joints