TENA Shampoo & Shower TENA Shampoo & Shower is a mild, dual-purpose cleansing gel & conditioning shampoo designed for elderly, fragile skin & hair. It can be used for full body bathing & hair cleansing in the bath or shower & leaves skin feeling fresh, clean & free from odours.TENA Shampoo & Shower has anti-static properties & contains provitamin B5 to make hair easier to comb.