Sheena Zadeh: The Woman Who Turned Four Lipsticks into a $150 Million Empire

Behind the glamour, Zadeh’s philosophy remained grounded in one principle: beauty should be healthy. The brand committed to excluding parabens, sulfates, and synthetic fragrances—ingredients long criticized for their potential harm. Instead, Kosas formulas relied on nourishing oils, botanical extracts, and clinically tested actives that improved skin over time. This approach positioned the company at the forefront of the “clean beauty” revolution, well before it became mainstream.