American Crew is the name of a line of products for men's personal care. The product Precision Blend is a mixture of hair coloring and has different shades. The presentation box includes 3 tubes of 40ml. When applying it is important to leave some areas free of the mixture so that the result is as natural as possible. Some areas to leave free are the sideburns and temples. The way to get a good reaction to the components is to do a test before applying it on the hair. In addition, it requires an activator to mix it with the same amount of colouring. It is suitable for men of all ages. Its use should not be abused. It is advisable to keep it out of the reach of children.