My current cat is pretty hypoallergenic; if I get a kitten, will it stay the same level of allergic-ness ?

Sorry if the title doesn’t make sense. I just mean that I was planning on testing how allergic I am to a kitten before I get it by petting it, but I’m wondering if the allergic ness property of their fur (?) changes as they grow up?

Sorry I know this is confusing 😭