Crushed or Liquid.
It offers perfect absorption and therefore dries your hands quickly during climbing. The chalk is suitable for hard sport climbs, where every detail of your performance and readiness matters.
Drying effect of liquid chalk lasts twice as long as the effect of usual crushed chalk. Let´s name its other advantages: it doesn´t dust, it also minimizes the colour staining on the rock and it is good for outdoor climbing as well as for indoor training in the gyms. For the extra strong effect you can use liquid chalk as the basic layer on your hands in combination with crushed chalk on the top.