To analyze which hair products had the highest performance with dyed hair retention, Good Housekeeping tested shampoos with matching conditioners through both lab and consumer tests.
Featured: Color Developments: Advances in Hair Dye Within the Last Decade
Here, Michele Behrens, assistant editor of Cosmetics & Toiletries, gained insights from Sabina Wizemann, senior chemist in the health, beauty and environmental sciences lab at the Good Housekeeping Institute, on testing shampoos and conditioners for color-treated hair and results they found such as product efficacy, labeling and additional testing insights.
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