American Crew offers a compelling, time-saving method of natural gray hair coverage. With the Presicion Blend service for gray hair, clients feel 5 years younger in just 5 minutes.Presicion Blen is not a traditional color service. Gray hair is visually matched to natural hair color and contrasts are reduced. Depending on the color shade, amount of color and color technique, white coverage varies from 25%, 50% up to 75% in the result. Presicion Blend is the ultimate color service for men. Application: In a color bowl, mix American Crew® Precision Blend and developer (4.5%) in a 1:1 ratio. For a customer with 2.5 cm long hair, a mixture of 20 ml is usually sufficient.American Crew® color develops in the hair in just five minutes. Set the clock as soon as the color is applied.Shampoo the hair again after the five minutes to rinse out the excess color.Terry the hair with the towel and finish your service with the desired styling.