Waxx Cover Hair Root Cover Up Black is a root touch up that covers natural and grey hair and root regrowth in only 30 seconds. Does not contain any dangerous or harmful ingredient and does not fade away with fresh or salty water and chlorine. Rich in pigments and shades, this product provides a long-lasting natural-looking coverage that matches most of the leading brands and provides beautiful colours between colour treatments. No dye patch test needed: everybody can use this product, except people suffering from desquamation, alopecia, irritation; can be used during pregnancy.