FADING diluted direct dye (Adore)

Hi everyone

I used Adore Mocha + Medium Brown diluted (conditioner + Adore Crystal clear) until it was a milk chocolate shade (from opaque dark brown) to top up my fading permanent Medium Brown dye.

Prior to this, I had bleached hair and then dyed it down to an ash blonde. I want my hair somewhat blonde again, so I am going to use Colourb4 to remove the 1 application of the permanent dye.

However, I need to remove the direct dye and I am unsure if the direct dye has washed out yet, as it didn't make a huge difference to my hair colour in the first place. I am unaware of how long diluted natural shades of direct dyes should last... I have washed around 4 times since dying it 2 weeks ago and my hair is pretty gingery in sunlight, which it wasn't at first which suggests that it has faded.

I was therefore wondering if I washed another 2 times before Colourb4, would 6 washes be adequate to remove a diluted direct dye? Or should I do a vitamin C treatment just to be sure? I have never done this & I want to prevent as much damage / drying as possible, as I heard Colourb4 is drying.

Any advice?  ;D

Update:

I have just ordered vitamin c tablets. There are lots of ways online which recommend how to use the treatment i.e. number of tablets, shampoo used, length used... Does anyone know which way is best? Also, on wet or dry hair?

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