<P> Semi-permanent hair coloring involves little or no developer , hydrogen peroxide or ammonia , and is thus less damaging to hair strands . The reduced amount of developer , whether peroxide or ammonia , means that hair previously damaged by applying permanent color or permanent reshaping is less likely to be damaged during the color application process . </P>
<P> Semi-permanent hair coloring involves little or no developer , hydrogen peroxide or ammonia , and is thus less damaging to hair strands . The reduced amount of developer , whether peroxide or ammonia , means that hair previously damaged by applying permanent color or permanent reshaping is less likely to be damaged during the color application process . </P>
what is the purpose of hydrogen peroxide in hair color
what is the purpose of hydrogen peroxide in hair color
developer
developer