It's just the same as a regrowth on shorter hair . The only problem I found with bleach whilst I was working in salons is that I like to check it frequently . ( foils included ) and it's not always possible when you are trying to give your next customer your undivided attention
It's no problem now I'm mobile .
I don't think you can get a clean level 10 using highlift , in which case bleach is better
However not everybody wants an icy blonde ,
If the desired colour can be achieved in one sitting using tint I tend to go for that
And have no problems with the condition of the hair afterwards