First off, the mitt doesn't work- don't waste your money. For a cat that sheds really bad, i'd first have it examined by a vet to make sure it doesn't have skin allergies which could be triggereing fur issues. Then if that is ruled out...try this...there are 4 essential tools to grooming a kitty- shedding blade, slicker brush, wide tooth comb, and a soft cloth...maybe even some dry shampoo if it's in between baths. First off groom the kitty with a shedding blade, that will take off the majority of the loose fur, then go over it with a slicker, next, use the wide tooth comb to groom around kittys face, legs, tail...etc...and finish off by running the soft cloth over the kitty to finish off the grooming and give it a glossy coat. That should dramatically help the shedding issues if done promptly every day.