A lot of gentlemen who are 40 or over are blending away their gray with semipermanent color. It covers 70 to 80 percent of the gray, so they still have some. So it's not like, 'Holy cow! George colored his hair!' It's like 'he did something, but what?' It lasts about eight weeks, so I do it every other haircut on guys. It just starts to rinse out. Jennifer Hall