Pearl blonde toner is a permanent dye which tones pale yellow colored hair Oxidizing dye, will lift 1 level 100ml dye + 100ml developer Silver coloring will tone pale yellow coloring to ash silver color Works on level 10-11 colored hair (pale yellow) Processing time is 20-40mins Always use a silvering shampoo to maintain color, once a week mixing ratio 1-1 for extra yellow, resistant hair, 1-2 for normal, fine hair Does not work on: any hair thats darker than level 10, 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***