Igora Royal Silver Whites Gray Toner is aimed at hair with 30-60% gray hair and with a base of 1-5. Beautifies and adds shine to gray hair and gray and white hair. Igora Royal Silverwhites Technology contains silamine and collagen, low ammonia content and low pH to custom beautify gray and white hair, without compromising hair quality. Special gray pigments provide cool tones to neutralize unwanted warmth for brighter, more intense results on white hair.