Magnesium, from HMS company, prevents hand sweating and increases friction, which will allow for a tighter and safer grip. It is used in the gym, where sweaty hands are associated with the risk of injury. Thanks to magnesium, when exercising with dumbbells or barbells, you don't have to worry about the equipment slipping. Its advantage over magnesium cubes or powders is that it leaves no traces and does not stain the equipment.