You really can't see the thinning while it's in a bun or ponytail, with bangs. Bumble and Bumble make a color hair
powder spray you can use to lengthen time between hair color
. Since you don't wash your hair much during tx it lasts until you wash it out. Use it on roots or where you see your hair looks thin at the scalp. I use Blondish, it's for light brown to dark blonde hair color. You can find it on ebay.