Do you have any hair questions you've ever wanted to ask a celeb hair stylist? Or maybe you want to ask a scientist about ingredients in shampoo and conditioner?

On Monday I can get your questions answered by both kinds of experts. Here's who they are:

Patrick Melville, NYC-based eco-conscious celebrity stylist. Worked with a heap of celebs including Zeta-Jones, Halle and Demi. Consultant on new hair-care line called Aveeno Active Naturals Pure Renewal -- sulfate-free shampoo, conditioner and a 2-in-1 shampoo/conditioner.

Dr. Kristine Schmalenberg, Ph.D, Staff Scientist, Research & Development for Johnson and Johnson, who worked on Aveeno's sulfate-free hair-care formulas. She can tell you geeky ingredient things, and maybe explain how a shampoo can clean and condition at the same time.

If you want to ask any questions, just let me know in the comments!