True or false - pull out a gray hair, and two more will come back

I have vitiligo, and have had some success in reversing greying caused by vitigilo (when the skin heals the hair follicals change too), I haven't seen any evidence that the randomly distributed greys on my chest are turning back to their original color. Natural greying isn't reversible as of yet, and I'm the only person I've ever heard of having any success in turning any sort of grey hair back to normal without dying them.

Basically get used to aging, and try to do it gracefully. Don't go crazy with lip fillers and botox, just makes you look worst as you get older.