Shu Uemura hair styling products. SHUSU SLEEK Conditioner. The Shusu Sleek collection for rebellious and frizz-prone hair contains black cumin oil that nourishes and disciplines the capillary fiber and keeps the volume under control. The daily use conditioner smoothes and detangles the hair. Apply on wet clean hair, from means to ends, leave in for a few seconds and rinse well. Your hair will be soft, smooth and disciplined.