Meet the Drain Weasel Plus from FlexiSnake: a simple tool that lets you deal with hair-clogged drains. It comes with a reusable handle and 2 x 18″ disposable wands. It spins 360 degrees to get the job done. Just slide the wand down the drain, crank to entangle and remove the hair, and the rest is easy.
You don’t need to use any special chemical to use this tool. Pretty cheap too.