I’ve not used it, but from the description of how it works (spray it on, leave to dwell, changes colour from clear to purple, rinse off) on some of the car cleaning / car detailing supplies websites it sounds like many of the decontamination / fallout removal products on the market that are designed primarily to remove iron deposits and baked on brake dust.

Assuming this is what it is, I’ve used Car Pro Iron-X which is good, but like many of this type of product Iron-X stinks to high heaven! Iron-X can also be safely used on car paintwork and is the decontamination product of choice of Clean Your Car on their website - link to website; https://www.cleanyourcar.co.uk/exterior/wheels-tyres/wheel-cleaners

I do find if you keep on top of cleaning your car (I usually clean my car every 10-14 days or so), it’s not really necessary to use dedicated wheel cleaning products and a good quality ph neutral shampoo at the manufacturer’s recommended dilution rate for normal car washing will do a perfectly good job of keeping your car’s wheels clean.
 
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