Kinesio tape - developed by Japanese chiropractor Kenzo Kase - is everywhere during sporting events. Nearly every athlete you see has multicoloured tape in random designs stuck on their bodies. The tape manufacturers claim it separates the layers of skins below the skin surface and promotes blood flow. This is not actually possible just by putting sticky tape on the surface of the skin.
There is little evidence that Kinesio tape is anymore effective than any other physio support tape. Trial results are contradictory and sparse. If you find yourself in need of some physio support, get normal athletic strapping tape rather than Kinesio and save yourself a few quid.