Made to blend away the grey fast. Forget the hours in the salon. You can now target the grey for professional results in 5 minutes flat. So if you're looking to get rid of all your grey, there's no faster product out there. It's as easy to use as shampoo. 100% natural look. Satisfaction guaranteed. Lasts up to 8 weeks or until the grey grows back. Patented grey target technology. Works in 5 easy minutes. Targets only the grey for a natural look. Leaves hair thicker and fuller-looking. Lasts up to 6 weeks until the grey grows back.