I was a hairdresser for over 30 years and am so glad I don't have to mess with it anymore, I am so over it. I hated the growing (new growth process) and yes after a couple three or four weeks you're going to see the new growth. Hated having to correct the home box colors. People really don't like paying for their mistakes. I suggest you have your hairdresser/stylist do it for you. She can do lowlights which would help you to grow it out gradually to get used to your natural new color. You can go longer with lowlights also.