It has a matte black base with a compact mirror at the top brandishing a YSL logo, but there’s more beneath the surface. The lipstick maker uses patented technology by Perso to produce ...

The $299 device uses color cartridges filled with “ink” from YSL’s lines of red, nude, orange and pink lipsticks. With the help of its AI-based system, you can create “thousands of bespoke ...