Goldwell Colorance is a demi-permanent hair color that not only protects the hair, but even repairs the hair structure. The healthier the hair, the more beautiful and shining the color result will be Goldwell Colorance Demi Color Acid Hair Color Coloration is a gentle hair color than contains no ammonia. Patented technolgy with a mild pH of 6.8. Goldwell Colorance Acid Color creates billiant, fashionable yet naturally looking colors. Colors fade slowly and stay on tone. With Goldwell Colorance Acid Color Hair Color, there is no visible re-growth. For a list of the names of these Goldwell Colorance color codes, please click on this link. To purchase the Goldwell Colorance Acid Color Lotion, please click on this link.