It stays and don't take long to do it.
I bought the Evil Hair Go Pink bundle and although it took several weeks to arrive due to stock and staffing issues, they did fulfill my order. I used it last weekend and the results are exactly what I wanted. The colour conditioner has kept my hair soft and my colour is vibrant. I've had loads of compliments on it. Great thing is I didnt use the whole tub of colour conditioner so I can use this as much as I want within the next year to keep my colour topped up.
The shampoo is very gentle with my hair so I can use it in every bath and both the shampoo and the conditioner help me revive the colour of my hair!