Chemistry & ProductsQuestion 70 of 484
Which type of hair color penetrates into the cortex and chemically lightens natural pigment while depositing new color?
a.Temporary color
b.Semi-permanent color
c.Permanent color (oxidative)
d.Color-depositing conditioner
Explanation
Permanent (oxidative) color is mixed with a developer (hydrogen peroxide). It penetrates the cortex, lightens existing melanin, and deposits new color molecules that are too large to wash out.
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