What the Manufaturer has to say:
Dodo Juice’s Mellow Yellow Is a strong, yet gentle Wheel CLeaner, Ready to go.
Mellow Yellow really gets to work on the Brake dust, yet very kind to wheels as it targets contamination, not the surface underneath. Unlike the extremelly Caustic Alkali products on the market, crated because of scaremongering about acids, this is an acidic treatment with a controlled effect giving the best of both worlds.
The ideal wheel cleaner for that quick wash, its ready to go in a spray bottle. Again its another product we would not do without.