I have really dark brown hair, but it has bleach blonde highlights on the underneath part... and one bleach blonde streak going through side-swept bangs part. So.... sometimes I will think I see a gray hair, but it's really a blonde strand on coming from the bangs part... but the other day, I inspected further and really did find a gray hair. It was the 2nd one I have ever found. I got rid of 'em. I just turned 26 this month. WHAT THE HELL???? Not happy.