For 30-60% white hair, base 1-5. Mix colour creme 1:1 with IGORA ROYAL Oil Developer 3% 10 Vol. To protect the hair line use Schwarzkopf Professional SKIN PROTECT cream and wear gloves. Development Time: 20 min Shampoo the hair with BC pH 4.5 Color Freeze shampoo and stabilize the hair with Schwarzkopf Professional HAIR SEALER. For an additional care or bonding treatment use Fibre Clinix. Please revisit IFU for detailed instructions.