Dee told me to keep the brow dye on for one hour which I thought was a little strange. I've only usually had dye on for 10-20 minutes at other salons or when dying my brows at home, so this felt a little excessive and I had to go home looking ridiculous despite having plans to run some errands after my appointment. Surprisingly though my skin was not irritated, although my eyebrows came out looking a lot darker than I'm used to. Good shape though so I'm impressed with the threading.