Wella Professionals Color Renew Crystal Powder 5x9gr

I am very satisfied. My hair was copper-coloured and I wanted to go back to blonde. After 60 minutes of processing, the colour was almost gone. A slight reddish tint is still visible. This will certainly disappear with a second application. The hair felt good afterwards. A minus point is the unpleas… Read more

It has some effect, but only if you have freshly dyed hair; the result turned yellow. The hair was so severely dried out that it broke in parts, so I wouldn't recommend it and would rather go for B4. The smell is also awful and lingers in the hair for a long time. The hair feels very odd after use.

Here’s a tip for the layperson: since this is a professional product, you must follow the Wellastudio instructions. Leave it to work for 45 minutes with heat! Otherwise there’s no effect. Then rinse and apply the regular colour. Maximum colour removal of 2 shades. But beware… Only after rinsing do y… Read more

It doesn't quite live up to its promise, but for pre‑colouring it works fine 👌 and it doesn't damage hair.