Cool idea, but not worth the price or mess
"I got an ad for this on instagram and was convinced by the ad. I bought the product without reading the reviews which was a mistake on my part. This product is extremely pigmented. It stained my shower, my scalp, my hands, everything turned blue. I’ve washed my hair probably 8 times since I put it in my hair and it’s still rinsing out blue. Luckily my tub is finally not blue. But this is more of a headache than it’s worth. Also it’s expensive. Just stick to regular dye."