Silver highlights shampoo is formulated with centaurea extract a botanical extract derived from the centaurea flower this extract brightens silver highlights and prevents gray hair from becoming yellow this softening shampoo is free of synthetic coloring agents hypoallergenic and extremely gentle it enhances volume and nourishes the hair and scalp with a mildly emulsifying base radiance is boosted debris and excess oils are removed and the hair is left with a soft smooth texture