Previa Earth Colour 8.0 / 8N 100 mlPrevia Earth Colour hair colors are gentle, natural, ammonia free colorants formulated with plant derived ingredients, certified essential oils, and botanical active ingredients. The product was specially developed to revitalize hair during the development time. It guarantees perfect gray coverage and a natural looking, luminous shine. Selected cool shades, inspired by the colors of nature, ensure natural looking, long lasting hair color.