Redken will introduce a new color care line specifically formulated for naturally gray and silver hair this October. The new Redken Color Extend Graydiant! Redken Color Extend Graydiant Shampoo is an anti-yellow, color-depositing shampoo that, along with the Silver Conditioner, tones, strengthens and nourishes naturally gray and silver hair.   Redken’s violet-pigmented, anti-yellow Shampoo neutralizes unwanted yellow and orange undertones left in gray hair once natural pigment is gone. With a ...