I have a grey-ing mustache.
I’m 32 and only have a few grey hairs on my head, but loads on my face.
I decided to do something about it.
Wal-Mart provided me the Just For Men – Beard and Mustache treatment which I applied with so much vigor, you’d question my kindergarten teacher’s inability to lecture us on strategic crayoning. The small note at the bottom of the instructions mentioned that if I had a lot of grey, a second coat might be needed.
So I put a second coat on top of the first one.
It wasn’t until 7-8 minutes after (the recommended time is 5) that I began to realize that this treatment is, in face, dye.
I also then realized that I had not been neat.
Which left me with a dyed face.
Not sure if this’d work for you, but our family recipe to delay gray hair is to eat cinnamon. My dad didn’t go gray until well into his 60s and even that was more silver than gray. I’m 54 next month and only have gray on my chin but nothing on my hair. My two brothers are in their 40s with no gray hair yet.
So it might be worth trying. I make oatmeal for breakfast, slice on a banana, dribble honey on that and sprinkle cinnamon to top it off. Even if it doesn’t work, you still get plenty of fiber, right?