FORMULA
This formula is created with sustainability in mind. The volumes suggested are enough for a successful result on a test strip. For actual whole head and root applications you would use the same formulas but increase the amounts to the manufacturers recommendations.
Target Shade Igora Royal 9-00
To colour Base Shade number 4 to Igora Royal number 9-00
use the following formulas.
Application
To begin pre lighten the Natural Base 4 five shades to a base 9 using formula 1 then washout the bleach and apply formula 2 with a sponge pressing the Igora Royal number 9-00 into the hair shaft (please watch the video). Leave for twenty minutes to pigmentate. Mix Formula 3 (Do not shampoo out formula 2) Apply Formula 3 over the top of Formula 2. and leave to activate for forty minutes. Shampoo and blow dry.
Natural Base Shade
Number: 4
Formula 1
Mix 2 teaspoons of powder bleach with 25 ml's of 9% hydrogen peroxide. 3 applications for 5 shades lift.
Pre-Bleach to a
Natural Base No: 9
Formula 2
Mix one inch of Igora Royal number 9-00
with a teaspoon of warm water
Formula 3
Mix one inch of Igora Royal number 9-00
with a teaspoon of 6% hydrogen peroxide