Amazing Oils Magnesium Active Bath Flakes provides a powerhouse combination of magnesium, infused with menthol makes the perfect addition to your warm pre or post activity bath. These flakes will be your personalised relaxation and repair experience. Taking a warm bath in these amazing magnesium flakes is a highly effective way to relax and unwind after a long day. Magnesium baths have traditionally been used in many ancient therapies around the world. The addition of menthol adds to the muscular relaxation and recovery process.