For best results to achieve 5R (Light Copper Chestnut) on uncolored hair, apply on 5N - Light Chestnut color hair. If applied on 3N, 4N, the color result will be dark copper chestnut. If applied on 6N, 7N, the color will be light copper chestnut. The same rules will apply for 5D and 5M. The Ash series is used to neutralise unwanted gold and red. To cover grey hair with 5R it is essential to mix appropriate quantity of 5N Light Chestnut.
See instruction on leaflet inside the color box or refer to 5N Light Chestnut.