[1] In March 2013, Renfrew founded Beautycounter, a beauty brand focused on creating safer skincare and cleaner cosmetics products.
[2][3] When Renfrew was still an undergraduate at the University of Vermont (from which she graduated in 1990), she started a house-cleaning company one summer with two friends on Nantucket.
[1] In 2001, Renfrew began a retail consulting practice and worked with companies such as J.Crew, Bergdorf Goodman, and Intermix.
[11][12] Renfrew has been known to actively lobby for regulation in the cosmetics industry to limit the number of harmful chemicals in products sold in America.
[14] In January 2021, it was announced that Renfrew was an early investor in Thirteen Lune, an e-commerce site focused on makeup, skincare, hair care, and wellness products owned by people of color, and allied brands.