Batmans Shampoo?

Just in case you have been puzzeled too... and wanted to know exactly WHAT shampoo BATMAN is usin' after a hard nights work out with some bad guys???

Yes...

GUILTY 

by Gucci
(& Batman)

Just in case anyone want to know... I recently discovered this shower gel in my bathroom!
Since I definitely didn't bought it... the question is: WHO is my girlfriend? Or even is she my Girlfriend, or something entirely else ???  :|