I've used ION on and off for years. It's worked fine for me
I due mine about every 3 weeks using the same ion colour from +
Now both sons say it's ok! I'm shocked!! lol I'll def wait and see, it prob will rop
Halp! I just did a touch up and my length is blue-ish gray. I used Color Charm 10A rop
To an extent, in that sectioning & technique is more important ro
Not an ingredients dupe, but I have switched off to this+
Ion from Sally Beauty Supply
YES! The rental has no water softener. I do a final rinse with reserve osmosis water +
Benzoyl peroxide wash would be my first choice, tbh. AHA/BHA washes tend +++
Toner lifted my roots too much, bought ion Demi 7NA