Shower cleaner is a type of cleaning product that is used to remove dirt, soap scum, and other debris from showers and bathtubs. It is usually a liquid or gel-like substance that is applied directly to the surface of the shower or tub and then scrubbed with a brush or sponge. Shampoo is a type of shower cleaner that is specifically designed to remove oils and dirt from hair. It is typically a liquid or cream-like substance that is applied directly to the hair and then rinsed off with water.