Billy Hargrove (Dacre Montgomery) is the bad boy par excellence in this season. He hates everybody, is rude to everybody but loves himself. A lot. The glimpse we get of his dressing table reveals interesting products he uses as part of his beauty routine.
He uses the same AquaNet hairspray Kali and Dottie use on Eleven in S02E07.
He also has a bottle of Breckset setting lotion.
The third hair product he has in his bedroom is Alberto styling mousse.
I haven’t been able to identify the cologne he’s putting on in this scene, but I know what the other bottle is: Aramis by Estee Lauder, a perfume created by Bernard Chant and launched in 1966. The choice is historically accurate but I feel Aramis is a bit too conservative for a rebel like Billy.