NO. Even if the cat had "human-like" hair it wouldn't be human hair because it grew from a cat.
humans
It is the dander of a cat that can cause allergies in humans. The hair of a Persian cat can cause allergies.
No. Get a cat.
well she turn into a cat because the hair was that of a cat not human
Yes, it is likely human chemical dyes will harm a cat. Commercial dyes use incredibly strong chemicals in order to change the colour of human hair. To a cat, the smell alone would probably painful, and the chemicals could do untold damage to the cat's skin and fur. Also, as cats lick themselves for grooming and cleaning purposes, the risk of ingesting the hair dye is very high, which could very well lead to poisoning. Please do not use human products on a cat.
You shouldn't have to as you can get human hair wigs in any texture, but you'd treat it as you're relaxing your hair hair.
Herbal Essences is a brand of shampoo and conditioner for human hair. It is not suitable to use on a cat as it is designed for humans only.
-.-
yes
NO. The chemicals we use for our medications will kill your cat!
Hermione doesn't turn into a person after drinking the Polyjuice Potion. She accidentally used cat hair instead of the human hair she meant to use (Millicent Bullstrode). She turns into a sort of half cat/half human. She has black fur, yellow eyes, whiskers, cat ears, and a tail, but she also has a human-shaped body and can talk still. (In the movie, she had orange fur).
You can get human hair at any wig store. If you want hair extensions you can get them at a beauty supply store such as Chatters