Liquid chalk gives you the edge on long routes. It is more effective over time, and more resistant to wearing off than dry chalk. Liquid chalk forms a layer on your hands that prevents sweat from getting through and loosening your grip on the holds.
Isopropyl Alcohol (75-90%)
Liquid chalk for long routes and boulder problems
Dries quickly to form a long lasting layer
More resistant to wearing off than dry chalk
Liquid form means less mess than dry chalk