The packaging is sturdy, and with proper application, it lasts a long time. It's for hair dyed with oxidative dyes, those dyes that fade over time. The instructions are included in the package

I've been using the Salerm Color Reverse system and I'm really impressed with the results. It effectively removes artificial color without overly damaging my hair, leaving it soft and manageable. I like that it work in steps, making the process easy to follow. After using it, my hair felt healthier than I expected and not overly dry. It's a great option if you want to correct or remove color at home without harsh bleaching.

It removes black dye really well it lightens the hair effectively and you can use multiple time since it comes in a generous quantity I highly recommend it damage the hair too much remove de color immediately