Particulars: Handcrafted shampoo bars do not contain detergents (like commercial shampoos) so they don't strip your hair and scalp of the natural oils which keep your hair and scalp healthy and protected. Your scalp produces less oil when it is not continually being stripped down and becomes less oily with prolonged shampoo bar use. Shampoo bars are easy to use - either work up a lather in your hands and then work into your hair or rub the bar onto the scalp directly. You are mainly trying to cleanse your scalp and then if you wish you can lightly work the lather down the ends of your hair. **PLEASE NOTE** If you are new to shampoo bars, you might have a transition period where your scalp hasn't gotten the message to stop overproducing oil since it is no longer being stripped. This oily period usually lasts for about 2 weeks although many people don't notice a significant change.