I credit Wen Cleansing Conditioner with transforming my fine, kinky hair into a smooth set of waves. For a long time, it seemed to be the only no-shampoo shampoo on the market, but as this article shows, many beauty companies are introducing "co-washing" products--a detergent-free hybrid between shampoo and conditioner. In this increasingly sulfate-phobic world, are you willing to trade in your suds? Let us know in the comments.