uka Shampoo Brush Kenzan is a small brush with a lot of benefits. A silicone brush that can be used on the wet or dry scalp. A mold-free brush you can keep in your bathroom it has spiky bits to clean your scalp thoroughly whilst pushing pressure points on the scalp. A KENZAN, also called spiky frog, is a specific device used in the Japanese art of flower arrangement Ikebana for fixing the flowers in the container. uka named the scalp brush after it due to its similar looking. When using KENZAN, the most important point is to enjoy its pleasant feeling. This feeling differs day by day, so we highly recommend you also give KENZAN soft a try even if you are a satisfied user of KENZAN! In particular, the condition of the top of the scalp is quick to change due to stress and hormonal changes, so the Shampoo Brush KENZAN Soft provides a sensitive alternative