Short answer: Yes! Longer answer: Aerwyna shampoo bars, like liquid shampoo, is designed to clean your scalp.  If you have very thick hair you will need a little more water on the shampoo bar to make sure the surfactants are reaching through to your scalp to collect excess sebum, oil and environmental dirt.  It is not necessary to scrub your hair strands with Aerwyna shampoo bar at all.  The beauty of modern surfactants is that they grab onto loose grime...