I really like the arrangement in Nancy’s bathroom: it’s a small space, so the toiletries are displayed on a metal shelving unit facing a window.
The first product I’ve noticed is on the second top shelf (just above Steve’s shoulder): it’s a bottle of the ever-present Old Spice after shave. On the same shelf there’s another interesting product, but more about it later.
On the bottom shelf there are Rise shaving foam and a jar of Pond’s peach cold cream.
One of the last scenes of the film is set in the bathroom again, and we can get a better look at the product previously mentioned. It’s a black bottle of Après Soleil by Bain de Soleil, an after-tan lotion which can be seen in a 1977 advert featuring Rene Russo.
There are several Pinaud Clubman products in the barber shop where Frank Slade (Al Pacino) gets a wet shave. The tall red bottle is Eau de Quinine hair tonic; the glass bottle with the green label is the after-shave lotion, and the green plastic bottle is the talcum powder.
Graham Dalton (James Spader) uses Barbasol shaving cream.
There are several hair products on Rick Dalton’s dressing table.
There’s a can of Rayette AquaNet hairspray.
There are two bottles of hair tonic – 
There’s also a Barbicide disinfectant jar.
Last, there’s a jar of Ayer 
McReynolds (Tyler Hoechlin) and his house mates are getting ready for a night out. In the screencap above he’s using the woody fragrance Aramis For Men, created by Bernard Chant and launched in 1966. Other boys will end up using the same perfume.
Other products can be seen in the bathroom: for example, there’s a can of Barbasol shaving cream on the sink.
On a counter there’s a can of Gillette Right Guard deodorant.
There’s a can of Gillette Foamy 
One of the criminals in the movie has got a very busy bathroom cabinet, filled with perfumes and colognes!
In the screencap above, he’s holding a bottle of 
The only product I was able to identify in the packed cabinet is 
Patrick Bateman’s bathroom cabinet is one of the best ever featured in the history of cinema. He’s a psychotic narcissist who spends a great deal of time and money to take care of his physical appearance. No wonder that the selection of perfumes and hair, skin and body products in his bathroom is very refined and luxurious.
On the bottom shelf there are three Phyto Men products and another fragrance – Pour un Homme by Caron.
On the top shelf there are two deodorants – Oscar de la Renta Pour Lui and Yves Saint Laurent 
We are also given access to Patrick’s shower, so we can see he uses Yves Saint Laurent Pour Homme 
More L’Occitane products are in the shower: there’s a bottle of milk shower cream (old packaging) and two shampoos – Shampooing Eclat and Shampooing Nourissant (now discontinued).
World Wide Aura 