Drabber information

I'd say in most cases yes. But what drabber? Any previous highlighting? Condition of your hair?

Sometimes your ends will really grab if they are really pourous.

What drabber how strong is it? chemically and depth of color?

What color is your hair? Why do you need a drabber?

Hi Dyer: Do you have Mineral build up?? Iron? Lime? even Copper?

A dirty red you say, it sounds like its already drabby red. What are you shooting for?? What color do you want to end up with??

Is you hair that color because of color damage? What have you used on it??

Are you pretty dark to begin with?? I mean your natural color...I'm not sure how light, light ash brown is ...

but its sounding like you might have to be lifted up past the red, to a gold at least, before you can tone back down to a light ash brown.

If you tone or drab your dirty copper red, you would have to go pretty dark to tone away the red.
Drabber by its nature darkens...because you are generally adding the neutralizing pigment (usually blue, violet or green) to counter the gold, yellow or red)...............................anyway to answer your first question, I don't think that the drabber for light tinted will do much.

In short lift up past the red to at least a gold or dark yellow then tint back to a light ash brown.
Kind of tough to do on your own. And you know what I'm going to say next....Go to the Salon and have a Colorist do this if you can.

Cheers