Mellie Logan (Riley Keough) uses almost exclusively Tigi Bed Head products at the hair salon where she works. Starting from the farthest table to the nearest, I’ve spotted the following:
Two cans of Superstar Queen for a Day thickening spray, one on both tables
A round bottle of Small Talk energizing cream
A pump bottle of Dumb Blonde violet-toning shampoo, perfect for the Purple Lady (Rebecca Koon)
A bottle of Elasticate shampoo (or conditioner)
A can of Flexi Head strong flexible hold hairspray
A bottle of Straighten Out straightening cream
A bottle of Control Freak serum
A bottle of Maxxed-Out massive hold hairspray
The odd one out here is a pink can of Aqua Net super-hold hairspray
Even the pink hairdryer is by Tigi: it’s the Mind Blower hairdryer
I wonder if Monsieur Poirot (Peter Ustinov) noticed the massive Guerlain 
There’s a Dior Diorskin liquid foundation in Lorraine Broughton’s make-up drawer. This is clearly a historically inaccurate choice – the story is set in the Berlin in the late 1980s – but there’s an explanation: Charlize Theron, who plays the role of Lorraine, has been the testimonial for Dior J’Adore since 2004. Besides the foundation, other details (clothes and accessories, for example) are contemporary.
Julie (Elle Fanning) works as sales assistant at a mall. In the screencap above, some bottles of Healing Waters 
In this Instagram picture from Taylor Sloane’s account there are a spray bottle of Jao refresher and a box containing Marvis Aquatic Mint toothpaste.
Next, a Mitchum Clean Control 
On the left bottom corner there’s a MAC compact, possibly Mineralize Skinfinish powder.
The silver tube is Jao 
There are two pots of eyeshadow: the cobalt blue one is by MAC, the other is Tom Ford Cream and Powder eye colour in Midnight Sea.
All the brushes are by MAC.
The bullet lipstick is clearly a red shade by MAC. Lady Bug and Lady Danger are among 
The clear tube could be another MAC product – Brow Set brush-on gel.
There’s a Maybelline 
Last but not least, a Dior liquid foundation.
There’s a bottle of Vaseline hair tonic in the Eberharts’ bathroom.
On the bathtub metal tray there’s a bottle of Antica Erboristeria 
From a different perspective we see there are other two shampoo bottles on the tray – Johnson’s Baby 
On the table by the door there’s a bottle of Roberts Borotalco 
