NEW KAO Merit Rinse-in Shampoo Cool Type REFILL. Stay cool by refilling your Rinse-in Shampoo Cool Type. Merit Rinse-in Cool Type Shampoo cleanses and moisturise the scalp and hair, preventing itchiness and dandruff. Thanks to menthol, it gives the cool feel and a hint of mint smell after each wash. Of course, it’s no longer necessary to use conditioner with this product – easy! Merit Rinse-in Cool Type Shampoo is one of KAO’s signature products and fifth most sold product in the Japan’s shampoo market in 2015. Perfect for everyday use and for families who wish to keep their bathroom fill up with safe and reputable made in Japan products.