Shu Uemura Art of Hair Straightforward is a blow dry oil spray that delivers a 2X faster blow dry*. Featuring the same gliding agents as makeup foundation, this oil-based formula invisibly coats each strand for an even slip and unprecedented glide for smoother, sleeker, shinier hair. Safe on color-treated hair. Key Ingredient: Black Cumin Oil: Known as the oil of pharaohs, black cumin oil is one of the most powerful antioxidants and boasts a rich balance of omegas 3, 6, and 9. It offers hair deep-down nourishment and discipline. *Based on professional usage and observation of 75 stylists in a 4-week study.