A Timeline of Every Celebrity Beauty Brand — Including Wyn by Serena Williams

In November 2023, Hilary Duff announced via Instagram that she's launching "a line of natural home fragrance products." The brand is called Below 60° and, according to its social media bio, is inspired by the "pristine air below the 60th parallel." Duff said in her caption, "Home is my happy place. That's why I'm so excited to launch Below 60º, a line of natural home fragrance products that you can feel good about bringing into your space. Becoming a mom meant becoming more conscious and cautious about the products I use -- so we've gone to the ends of the earth to develop unique, 100 percent natural fragrances from responsibly sourced ingredients. I can't wait to share them with you. They're fresh and fantastic and so much fun."

It appears Below 60° will carry a line of essential oils and a diffuser.