100% Gray Hair Coverage:Fvquhvo Black Hair Color Shampoo is degisned to cover gray hair 100%, which can cover all of your gray hair in 10-15 minutes( 15-25 minutes for stubborn gray hair),makes you look younger and vigorous.Please take a skin test before using black hair color shampoo for the first time. | Black Hair Dye Shampoo 3 in 1:Different from traditional hair dye,Fvquhvo black hair dye shampoo not only can work as black hair dye, but also can work as hair shampoo and hair conditioner. We can do hair color and hair care at the same time, very convenient to apply at home. | Upgrade Natural Ingredients:The upgraded formula color shampoo hair dye is more gentle, allows you to color hair as you like, no need to worry about doing harm to your hair.Wild ginseng,and sesame with active ingredient that make your hair healthy and glossy;Ammonia free,and paraben free, with no harsh chemicals, safe to use. | Easy to Apply:No bowl or brush, just need to put on gloves, and apply it as normal shampoo on DRY hair, wait for only 10- 15 minutes,then rinse it.You can have shiny brown hair immediately.Save your precious time from salon visit for hair color. | Long Lasting Black Hair Shampoo:16.90 Fl Oz black shampoo is available for around 10-15 applications,very economic.What's more,the natural black hair color can last up to 3-4 weeks until gray shows.The hair coloring shampoo only hangs on to the surface of hair shell, much safer for your hair as well as your skin.