Secret Stuff is FrictionLabs' answer to liquid chalk. Rub a small amount on your hands, let it dry, and a perfect layer of the highest purity Magnesium Carbonate magically appears. It's a base layer, a mid-session refresher, or a training partner. You can use it as a total chalk replacement, or put it on at the beginning then augment it with loose chalk or a chalk ball if you need to reapply. Some people like to use Secret Stuff as a mid-session refresher, helping cleanse and reset their hands when they start feeling worn down. A single 75mL bottle of Secret Stuff will last about 100 uses.