i have a friend who has had full head highlights and built up so its more or less a full head bleach but some are whiter than others and was toned with a 9/60,
she now wants to tone down with ct 9/73 would i need to prepig with 0/33 or will it be ok to apply straight on?
she now wants to tone down with ct 9/73 would i need to prepig with 0/33 or will it be ok to apply straight on?