Not sure about this - I've been using HRT for more than 7 years but been colouring it for many more than that and it is really dry now - horrible - like straw, I always damp it in the morning, spray on some leave-in conditioner, slap on some volume mousse, and then dry the scrunched up top bits with with the hair dryer to give it some body and to hide when the grey roots are showing through

It always used to be dryish ie never greasy, but very glossy when I was younger.
I think I must have a try of the olive oil treatment. How often do you recommend doing this karin?
Also I have a small bottle of Argan oil and have never used it. Tiger - do you just leave it in, and do you use it instead of conditioner?
Hurdity x