Nexxus Diametress shampoo is the product of cutting edge technology. It contains vegatable ceramides, panthenol (B-5), antioxidants and UV protectors. It is also fortified with Nexxuspheres which strengthen your hair. My hair has always been fine and limp, essentially baby hair. I have been using Diametress for over 10 years, since a hairdresser suggested I try it, and my hair has never looked better. It is full and thick and has lots of body and shine. Just shampoo in and rinse off--no waiting. Unlike other hair thickening products, the ingredients in Diametress work instanly to infuse your hair with body and shine. And, also unlike other thickening shampoos, there is no buildup of residue. In fact, the more I use it the shinier my hair looks. Best of all, Diametress is now available in stores everywhere. When I first started using this volumizing shampoo, I could only purchase it in select beauty salons at a premium price. Diametress is priced competively.