To dissolve hair clogs I use a solution of NaOh which is sodium hydroxide or better known as lye and water. Works great! It's sold in hardware stores as a sewer line declogger and is sometimes called "Lil Devil". Try an experiment with a bit of hair in a container of water and then add some lye and probably in about 10 minutes the hair will breakup into little pieces. Be careful in using lye because it's caustic. Follow the instructions on the container. Also it doesn't harm the plastic drain lines.