Colorton professional 10c double light ash blonde tint - 100ml + 100ml 20vol developer, made in Italy Permanent tint high lift 10.c 100ml + 100ml 20vol developer light beige blonde ( ash undertone) Silver coloring will tone pale yellow coloring to ash silver color Works on level 8- 9 level colored hair ( pale yellow) 100% grey coverage Processing time is 20-40mins Always use a silvering shampoo to maintain color, once a week Does not work on: any hair thats darker than level 9, resistant hair and yellow orange color ( please use light grey for yellow/orange shades) ** Please note that the very dark colors of Asian hair types will be extremely hard to get to silver, for those with very dark and resistant hair types, please see a professional stylist*** ** All hair that have been previously dyed with hair dye, will not become silver and will suffer damage, please see a professional stylist***