How to make bright hair dye stay in longer?

While my blue and green lasted for months (and we couldn't freaking get rid of it) my purple hasn't lasted as long, which I remember from having purple before. Like someone said, in between shampoos, just do a conditioner treatment without washing. Use dry shampoo. That's the best advice I have. Some colors are just divas

i found good research. As i know, to lighten your hair, you do not need to go to the salon. This can be done at home using cosmetic or folk remedies. Hair preparation and proper procedure will please your results, and advice and warnings will help not to spoil your hair.