Hi
I have Diactivateur 6 vol but the colour didn't take well on greys. Thinking about trying 9 (and possibly 15 if that doesn't work) but was wondering if I buy 15 can I mix this with 6 to come up to about a 9 vol?
Thx
I have Diactivateur 6 vol but the colour didn't take well on greys. Thinking about trying 9 (and possibly 15 if that doesn't work) but was wondering if I buy 15 can I mix this with 6 to come up to about a 9 vol?
Thx