I've used AIG Alu clean on the Alu side guards of our truck which happen to be held on the truck with galvy brackets, where the over spray has been on the galvy brackets it's definitely brightened them up but in no way as shiny as new
Maybe it's AIC Alu clean.
Yes from memory (it was a long time ago) it certainly never had the shiny new galv finish, but just looked nice and clean. As said, shiny new galv is pretty much a once only job, it will never look as good as the day it was dipped. But I’ve got a trailer that I had dipped over ten years ago which obviously doesn’t look like new but is still very clean and actually underneath is still very bright. But it does benefit from little to none winter use.