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Use this formula
Mix one inch of Goldwell number 10A
with a teaspoon of 6% hydrogen peroxide.
No Pre Bleach Required
No Pre Bleach Required
Target Shade Goldwell 10A
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.
To colour Base Shade number 10 to a Goldwell number 10A
use the following formula.
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 10A has been achieved.
Natural Base Shade Number: 10
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