I have been shampoo free for almost a month (a few days shy). My first response "ew gross!". However, the more I thought about it, the more it makes sense. We condition our hair to need to replenish it's oil with frequent washings. I had already gotten my hair to the point where I only needed to shampoo 2 days per week to keep the oils down. Any other time I was in the shower I would just rinse well to loosen any dirt. Well, this is just one step above that. Check out the links below. This is for all - yes all hair types. It's not only better for your health but super cheap!