Review (1/5): Grey pink is the shortest lasting dye I've ever tried
Compared to other semi-permanent dyes, this lasts the shortest. I've tried 3 different brands (Adore, Manic Panic, and this) and the two former last 3 weeks at least. My hair was already bleached light brown/yellow and I followed all the instructions, but a bit of lukewarm water next morning just takes it right off.
If you want a grey pink, I suggest trying [[ASIN:B004M5WMXC Adore Creative Image Hair Color #69 Wild Cherry]] because that color is really similar, thought it's a bit brighter. It's also way cheaper and lasts pretty long for me.