Long before Issa Rae officially came on board as co-owner of hair-care company Sienna Naturals in 2020, she was a "guinea pig ...
Rae reportedly joined Sienna Naturals founder Hannah Diop as a co-owner of the brand in 2020, and is now the face of the brand. Rae and Diop — who are sister-in-laws as well as business partners ...