My son wanted blue hair for a crazy hair day at school. We picked up this spray to give it a go. He is a ginga ninja.
It worked quite well at colouring his hair but the feel of it was quite odd. It made his hair stick together in a gunky kind of wet chalk feel. When we tried to brush it through to get rid of that, but it lost A LOT of the colour on the brush, any time he touched his hair he had blue shimmer on him.By the time he got home the edges of his skin were the bluey shimmer as well. He only has short hair and we used an entire can. . He decided to wash it out that night, only it didn't come out properly, he had a slightly greeny blue tinged hair colour for about a week after, he wasn't worried about the colour but just thought it should be mentioned as it is meant to be wash out.
I have bought a can of purple as well that I want to try for myself. I am going to try putting hairspray over the top in the hopes that it will seal it.
I say 'safe' because I have a hairdye allergy (PPD and a couple other chemicals) and so my hair is now growing out in my natural silver-white. This doesn't give me a reaction, but I still use it sparingly.
I've tried both pinks and really want the rose gold.
The paler pink shows up well and washes out readily. The hot pink stained my hair and i had a pink tinge to my hair for about 5 washes afterwards, which I was actually a fan of. In both cases you need to spray quite liberally, and then brush through and respray to avoid hair going stiff with spray.
It transfers like mad, so you have to be careful, and wash it out before you sleep, but the impact in the meantime is amazing and if you're just wanting a day of bright dye for a specific purpose it works well.
I'm looking forward to having my hair grown out enough to use the hot pink to stain the tips :)
Tips: wear gloves with the brighter colours, and be careful where you spray!