Blue Malva Shampoo For all hair shades Adds silvery brightness to gray hair Blue Malva Shampoo can be used by all hair shades. This moisturizing formula helps neutralize brassiness in chemically treated and natural hair of all shades. Rich oils, human hair amino acids, and pure botanical extracts of the malva flowers, rosemary, and comfrey plants, gently cleanse, condition, and help strengthen hair naturally, creating luster and shine.