Last way more than 3-4 shampoos.

Did it on my blond hair in aqua. Turned out super beautiful for the first week. After than it faded into a greenish lime colour that i couldn't remove even with 2 bleach. I've just put my hair black to get rid of it. Hawfull product.

my hair wasn't blue, but my feelings were.

Flash back to when i'm standing in the drug store excited to throw some blue in my hair.
I go home, follow the instructions, wait and wash the colour out, only to see hardly anything caught.
I looked like i had taken a faded out blue marker and colored my hair.
I had to go back to my hair dressers to bring me back to normal blonde. not recommended.

Don't waste your money!

I've spent the last 20 years dying my hair, and have used a lot of semi-permanent colours. I decided to try Colorista as it is new and I work at a store that sells it. I used the Teal over light auburn. The Teal is designed for dark hair and I expected maybe a tint of colour (let's be real, it's hard to get any colour over dark hair, especially semi-permanent colours). It turned my hair green! I'm still trying to figure this one out, since I had red undertones it should have gone more blue. Several of my coworkers and customers have also stated that they had poor results not only with the Teal but other colours. Spend your money on a better quality semi-permanent!

Didn't work at all

I have blonde hair (but not as light as bleach) and thought it would work as it is nearly the same colour hair as the colour it recommended on the packet. I used Pink and left it in for the right amount of time but it didn't even show up slightly. I am very disappointed with this product do not buy unless you have bleached hair for the colour to even slightly show up.