grey hair

I've had a lady come in with fully grey/almost white hair who's had colour previously which seemed like it had been weaved through her hair before finely. She came in with her previous colour mix written down but I can't quite understand what it means, it says : wella koleston 88.0 & 8.3 with...

Hi I've not done hair in quite a while just family so I'm really in need of a refresh on colour theory to reassure myself before i do this hair. She's been having highlights with 6% and a 10.21 toner which has been beautiful for 2 years. However, she's now salt and pepper in the back (the...

Hi has anyone used the Wella true grey range? Any before and after pics would be great. I find some of the Wella pics a bit weirdly photoshopped so some real heads of hair would be really helpful. Is the range mixeable with other colour touch?