My husband just came up to me to show me all the brown hair in his sideburns. They used to be completely gray. And once he pointed that out, I took a good look at the rest of his head and could see that there is a lot less gray hair over-all. We guess it took a while to notice because it happened so gradually. He claims I have less gray hair, also. He even said he had been meaning to ask me if I started coloring my hair! I've been pulling for 6 months; he has been pulling for about 4 months. For this alone, I will continue to pull. We're grateful there are so many other benefits as well: sounder sleep, clear skin, healthy gums, joints no longer stiff and sore, sweeter breath and white, white teeth. The fountain of youth flows with oil!