DOES THE UNIQUE STEP CHANGE MY HAIR COLOR?Updated a year ago
Yes, a keratin shampoo combined with a high temperature can alter the blonde color to a more yellowish shade. To avoid this, set your flat iron to no more than 450ºF.
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Yes, a keratin shampoo combined with a high temperature can alter the blonde color to a more yellowish shade. To avoid this, set your flat iron to no more than 450ºF.