Studies are mixed about whether permanent hair dye causes cancer, but there is no doubt that conventional formulas contain carcinogenic ingredients.
Dying for Color: The Environmental & Health Risks of Hair Dye Most Dyes Contain a Chemical that Can Cause Dangerous Reactions
Health risks of hair dye: many of the most common hair dyes contain chemicals that can cause dangerous reactions, hair loss and other problems.
Fooled by Food Dyes: From Cereal Bars to Salad Dressings, Artificial Food Dyes Are Everywhere — And They Aren’t Doing Our Health Any Good…
I want to add highlights to my hair but want to avoid harsh carcinogenic chemicals. What are my options?