Review title is Great tint for eyebrows [SEP] Wow is this easy to use! I left on my brows one minute for starters and ended up with 1.5 minutes working best. So fast and easy to tint. It's been two weeks, and I haven't noticed any fading.  I had to contact the company as the Amazon distributor left out the developer. They sent me a replacement bottle very quickly and were very pleasant to talk to. I'd highly recommend this product.