I used this treatment oil. After the first use it washed all of my colour out. I contacted Pump haircare and they said it was colour safe and I can get a refund. Even though I have used the same hair salon for years and never had a worry I thought maybe it was just me so I tried again and used it to the letter. My hair snapped off. Yes my hair was bleached and coloured but I have used so many different treatments before with no adverse reactions. My hair felt like a cheap dolls hair and looked disgusting, frizzy and like a nasty wig. It felt like cheap nylon threads. The minute I used a detox shampoo my hair instantly felt better. I also used in conjunction with the Pump frizz gloss mask.