Blonde to dark chocolate brown

I always fill bleached hair with a red direct dye to replace the pigments lost by bleaching before attempting to go dark again. Then use a very low vol peroxide so the dye is deposit only, you don't need any lift.

i'd use ten to deposit any higher volume will lift, and really I'd recomend or semi or demi in the first place, going darker doesn't need 20 vol,  and defintily fill with a red, either a direct dye red, adore paprika, or mahogany or a red protein filler colorful makes a red one that you can get at sallys,

sorry to bump this up but iI have a quick question related: would this method be advisable if the brown you're using is a semi-permanent? I've been trying to get my hair a natural colour and always mix with a bit of red dye like paprika, but the brown (adore dark chocolate) is always washing out too soon :/ i was wondering if dying my hair red first and then brown would do the trick

thanks in advance  😀

Probably not. The brown will still fade first, so you'll still have to top up the brown!