Sour Power is our gloss-enhancing shampoo, designed to leave behind a very thin carnauba film after washing (unlike Born to be Mild, which is designed purely to clean, and leave nothing behind).
However, as well as adding a bit of gloss to paintwork and fortifying the wax underneath, it still contains an array of powerful cleaning and foaming agents, ensuring an effective, highly-lubricated wash. Don't take our word for it - you can feel how slick it is between your fingers.
What else? Well, being pH-neutral means it's kind to underlying waxes and sealants - so it won't strip them off and actually increases their inherent protection thanks to the wax residue left behind.
It's also super-concentrated (about 3x standard high street shampoo strength), so you can dilute it with water 1:600 and it'll still work a treat.