Why is this happening?

I always thought it was a dun gene that caused that .
My boy has frosting in his mane and tail
His mane is split , it falls on both sides ...I try to get it to one side but no luck, it doesnt stay. You can see along his mane where the lighter hairs are at. I couldnt find a good butt shot...lol

I found this:
frosting, mane or tail

• often, but not always found on dun horses; may also be found on non-dun cream dilutes and some chestnuts. (see "guard hairs")

guard hairs

• the hairs that edge the mane (and tail), which are usually (but not always) lighter, sometimes even flaxen or white, on a dun. Can also be found on cream dilutes and some chestnuts, however.

From this site Definitions Not sure how accurate it is though.

My first post!! Hi everyone, I have been lurking around for a little while now, as I just got my first horse and I am trying to learn everything I can about horse ownership. She is a great horse and I am learning so much with her! This forum is really great and I have learned a lot. Not to mention I love seeing pictures of everyone's horses!


Here is my buckskin paint mare Savannah, she is 9 years old. She also has the frosting. I just love it!

Wow Quest, she's beautiful! Welcome to the forum!

Welcome Quest!

I have always wondered why some horses have white bits in their manes. Interesting.

By the way, beautiful horses everyone!

Nice looking mare Quest, very dappled :) Love it.