Goldwell Topchic Professional Hair Color helps in achieving your target color every time you want; the permanent alkaline hair color for superb color results. Infused with hydrolyzed wheat protein and panthenol to add strength and shine to hair. Impeccable quality. Durable color. Accurate. Perfect tones. Formulated with Color Link, a patented technology that allows color molecules to "link" together. Its patented penetration system ensures even pigment distribution from scalp to ends.