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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 Goldwell 7NN
To colour Base Shade number 7 to a Goldwell number 7NN
use the following formula.
Natural Base Shade Number: 7
Use this formula
Mix one inch of Goldwell number 7NN
with a teaspoon of 6% Hydrogen peroxide.
No Pre Bleach Required
Application:
Apply the formula above from roots to ends in one application. Comb through and apply more hair dye again to assure complete penetration of the hair dye. Leave for 40 minutes then wash off the hair dye and a perfect Goldwell number 7NN has been achieved.
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