In Canada pepper spray is illegal. It’s 1-2 % capscisn ingredient. BUT, we are allowed to carry bear spray, 1% capscisn, but not allowed to carry for personal protection against people.. I carry a big canister when walking dog. It also comes in small canisters. I’m sure a girl or guy could get away with using it in a pinch against a human in the country where we have wildlife. But in a city it would be considered an illegal firearm.
The difference between the two is the spray pattern. The bear spray sprays a cloud. The peppery spray sprays a stream right into persons face if armed right.