my staple dye [SEP] I have had this bottle for over a year. I use it to dye my hair light(ish) pink. I mix it with my conditioner to keep it light and to keep my color up in between dying it. It’s perfect. Ask me questions if you need to! I will try to help. For my use, it lasts for a good two weeks without keeping up with it in my conditioner. If I keep it in my conditioner for daily use, I rarely have to sit and dye it for an hour. Love this brand.