Do you dye, not die, at home or at the hairdresser's?

[bobbeym]

I have below-waist length curly hair, with wide streaks of gray at the temples.  I'm 41 but recently started dying my hair again (stopped several years ago) because the gray streaks make me look older when I wear my hair pulled up, which is often.

 

I use Garnier Olia 2.0 Soft Black, which covers the gray nicely and brightens the color of the length.