Our professional strength formula is specifically optimized to quickly destroy clogs from hair, the number one cause of household drain clogs. Roto-Rooter Hair Clog Remover has 25% more active ingredients than other products* and precise viscosity (thickness) to power through standing water and then cling to the hair clog until it is dissolved. In fact, independent lab studies have proven that Roto-Rooter Hair Clog Remover dissolves tough hair clogs faster than other national brands.