A source of heat reduces the length of the treatment process.
ON NATURAL HAIR, FIRST OVERALL COLOR
Divide the head into four equal pieces, with one division running from one ear to the other and through the crown from the middle of the forehead to the nape.
Apply the mixture to the ends and the entire length of the hair shaft (starting 1-2 cm from the roots). Use Oxid’o 10% more potent than you would for the roots.
Apply the color to the roots after that, and let it sit for 35 minutes.
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