Product Description Reviews Schwarzkopf’s Oil Developer is a conditioning, caring peroxide that’s optimizedto work with Igora. 12%for lifting up to 5 levels and for colouring with the Fashion Lights. 1 Review 5 Schwarzkopf l-Igora Royal developer 12% 900ml Posted by Anna on 6th Jun 2024 NOW IF YOU ARE a pro you know must have always have 12% volume it’s the ultimate necessity in our area drop ? t to 20V.. drop it to 30 volume..must say very pleased with igora by Schwarzkopf as its like a extra additive oil barrier that puts shine onto hair develops the colour beautifully every time ..choose no other than its own and you cant go wrong there ???absolutely eazyyy loveeeee ??