For those who adhere strictly to the instructions for use: You can see the hair color thoroughly before Moisten, then reaches a pack of (I have about 40 cm long and very dense and strong hair which I dye myself). The color package just cut with scissors after they have been previously shaken a little, and then carefully poured into the developing solution. Takes about 1 minute, so no real act. The color is strong with me as in the picture and lightens after a few washes slowly and then gets a natural-looking copper, as I once had my hair before well ... so I only after 8 - 9 weeks Stain needs and because then the renewable hairline is even seeing and not the color is washed out about. The only flaw in my opinion is the small amount to hair conditioner, so I assume other and thus to the hair after dyeing not strohig. All in all, it is recommended the product.