I was given a bottle of this by a friend who didn't want it. Usually I use the slightly cheaper Schwarzkopf range, so I was interested to try this one.
It was easy to apply (rub in like shampoo) and I only needed to leave it for 15 minutes. By the time I washed it out my hair was a lovely dark grey-toned blue.
As I wash it and swim in chlorine with it it seems to be fading to a paler aqua green colour. I'm pleased the colour seems to be holding better than previous wash-out dyes I've used.
In future when I want a cheap and easy colour change I'll be getting my mits on this stuff again.
I had my teenage rebellion about 15 years late, and decided to put a DIY turquoise ombre into my caramel blonde hair. It worked really well, save for the turquoise part, which came out a little greener than expected. Good and bright though, and easy enough to fade through.
I went for a second go after the first had faded a bit, and went blonde to 'Turquoise' to 'Denim'. This looked really cool, and has taken ages to fade out definitely longer than the stated number of washes!!
The product is super easy to use, applies onto dry, clean hair, then washes out after around 25 minutes. I personally got to live my best mermaid dreams, then listen to my work colleagues discuss what colours I should try next. Pretty good for the price, and not a lot of commitment required.
Tips: This is a lot more vivid on lighter hair- be aware!
Colours are not necessarily true to the box.
If the colour isn't fading quick enough, use a thick hair mask , leave in for the stated time, and rinse out. It might be person-specific, but I found that it did the job of 3-4 washes in one.