I went to the salon yesterday and colored my hair. The color was suppose to be light alburn but turned out dark red. The lady used Redken shades semi permanent hair color.
Does anyone know how long it takes this to wash out?

Hi!
Semi's usually last around 6 shampoos depending on the porosity of your hair.

A semi-permanent color will last from 6 to 8 shampoos or more. But if your hair is very porous, the color will grab your hair, making it last longer. Remember that red hair color fades faster than any other color. So, the semi permanent color will wash out each time you shampoo your hair.