Counter current chromatography is a liquid chromatography technique that uses two immiscible liquid phases rather than a solid support. It works by partitioning a solute between the two liquid phases which flow in opposite directions, allowing separation. There are different types including droplet CCC which uses gravity, centrifugal partition chromatography which uses centrifugal force, and high speed CCC. Careful selection of solvent systems is important to achieve the desired partition coefficient for separation. CCC has applications in isolating compounds from natural products like plants.