Chemicals in hair dyes may cause allergies for some people. Around 38% of people who color their hair report having an allergic reaction to hair dye. The most common allergic reaction to hair dye is ...

Research suggests a potential link between hair products like dyes and straighteners and breast cancer, particularly for women. These products may contain hormone-disrupting chemicals and carcinogens.

choose herbal products as they are free from harmful chemicals. Unlike regular hair dyes which contain ammonia, natural hair dyes are formulated using henna, indigo, amla, and other botanical ...

Supplementary ‘hairdresser series’ tests (18 additional hairdressing chemicals) showed an allergy to 4-toluenediamine (4+), 4-aminophenol (3+) and 3-aminiphenol (3+). The remaining course of her ...

Objective: We examined whether individuals allergic to PPD will tolerate PPD-free hair dyes containing PTDS. Methods: A retrospective analysis of patch-test results since October 2006 was done and ...

Hall's Vegetable Sicilian Hair Renewer advertisement. Warshaw Collection of Business Americana, Archives Center, National Museum of American History, Smithsonian Institution The Museum’s collection of ...

The PPD-free PTDS-based hair ... tolerate the new PTDS-based hair-dye products will eventually have cross-reactions to PPD since PTDS and PPD are closely related chemicals. However, five of ...

When Helal was just 18, her hair had been through it all. Years of dyes, straighteners, and those occasional bad hair ...