Acidic post-treatment of hair dyed with dihydroxyindole

Details Acidic post-treatment of hair dyed with dihydroxyindole Acidic post-treatment of hair dyed with dihydroxyindole

A - Human Necessities

61

K

A61K 8/49 (2006.01) A61Q 5/10 (2006.01) A61K 7/13 (1995.01)

Patent

CA 2095784

A process for altering the color of hair that has been dyed with dihydroxyindole comprising the steps of treating the dyed hair with an acidic solution for an effective amount of time and rinsing the treated hair.

Méthode pour changer la couleur de cheveux teints avec du dihydroxyindole, consistant à traiter les cheveux teints avec une solution acide pendant une période suffisamment longue, puis à rincer les cheveux traités.

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