24 citations
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January 2001 in “International Journal of Cancer” Permanent hair dye use may increase bladder cancer risk, especially in female smokers with certain genetic traits.
Certain ingredients in personal care products, like formaldehyde, oxidative hair dyes, and sulfates, pose health risks and need careful review.
September 2023 in “Journal of the American Academy of Dermatology” Red tattoo ink may cause skin growths, needing careful monitoring.
2 citations
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December 1988 in “PubMed” C.I. Acid Orange 3 caused cancer in female rats but not in male rats or mice.
6 citations
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December 2018 in “Medical principles and practice” Using hair dye may slightly increase the risk of non-Hodgkin's lymphoma, especially with long-term use.