BaldBandit, thanks for the comments, cheerful and fun. I guess the gray hair arrive in his time, only I wanted understanding how the hairs can clarify while are grow. 

Tom E., would be a pleasure to go to Oregon at least to see your beard live. I grew seeing my mom cutting the hair of her clients, I suppose that I learned some skills about it. As for gray hair, I will embrace the white at the time. Meanwhile, I like gray hair that come out, like a salt and pepper. A color pattern as yours, I love it. I will follow your recommendation and look in the board. A big hug.