I have always used nice and easy, as that’s the brand my mum uses. I’m 43 with quite abit of grey hair, but one box always covers beautifully, on fri 18th oct whilst in my local store I spotted the age defying dye and thought I would give that ago instead . My husband followed the instructions to the letter and I thought it had dyed my hair lovely, the colour was great and so shiny, but unfortunately the next morning I discovered a few grey areas. I assumed my hubby had just missed a few spots do I went back to the store and bought another, we repeated the process again, but even after 2 boxes of dye I still have grey areas that hsvent dyed. I’m so disappointed as I’ve paid out for 2 boxes and looks like I’ll have to live with it been grey for a while now as I I darnt put another dye on incase I ruin my hair. I’m really disappointed with this product and would welcome some feed back and advice from yourselves. Kind reguards nicola landale