Turns out, shiny black is the new black. "It's smart to transition into this dramatic colour during the cooler months, to prevent fading due to sun exposure," said Schaudt. Both her and Jimieson recommend doing a demi permanent dye in case you're feeling noncommittal.
"It's also softer and easier to wear if you add the black to your medium or dark brown base colour with foils or balayage rather than going completely solid," said Jimieson. "Ask for a demi permanent so you can change it down the road and it will be super shiny.