holts tyre shine, back to black.
my cousin ran a car wash some years ago and had this green goo that you spread on tyre walls same as the spray but lasted a lot longer, i cant remember what its called but its worth to know paint on ones work better that spray on ones.
use autoglym tyre shine myself, spray on and leave for a shiny look or wipe with a cloth when wet to give a matt look.
I use Meguiars Tyre Gel, lasts for ages and keeps yours tyres nice and shiney! Oh and smells lovely too!!
TOP TIP, no back road blasting for at least a day after applying lol slidey slidey