Law's career in fashion started with a photoshoot for a brand called Illustrated People, from there she was contacted by an agent; she was then chosen by Christopher Bailey to be the face of Burberry's beauty campaign.[3] She appeared in the 2017 lookbook for the Miu Miu resort.[8] She has appeared in adverts for Marc Jacobs, La Perla, and Stella McCartney, as well as Lacoste, Calvin Klein, and Versace.[7][9] In 2021, she became an ambassador for Dior Beauty.[7] She made her runway debut at Miu Miu's A/W 2020 fashion show. She had already appeared in a Vogue editorial as a toddler.[10]
Law was cast as Soo Catwoman in the miniseries Pistol, for which she shaved her head.[11]
