Hi all,
do you all use the corresponding developer eg. Wella, l'oreal or tigi or a generic one from the wholesaler?
I've been doing strand tests( for blonde) with a 12% from the wholesaler and it only lifted 1 shade - so I washed it off and used my 9% welloxon and it lifted a lot more, so I'm guessing the new bottle of 12% has lost its strength or been mis-labelled or the tints will only work with the brand name developer?:?:
do you all use the corresponding developer eg. Wella, l'oreal or tigi or a generic one from the wholesaler?
I've been doing strand tests( for blonde) with a 12% from the wholesaler and it only lifted 1 shade - so I washed it off and used my 9% welloxon and it lifted a lot more, so I'm guessing the new bottle of 12% has lost its strength or been mis-labelled or the tints will only work with the brand name developer?:?: