Health Concerns From Dying Your Hair
The above study stopped short of saying that coloring your hair can cause cancer, but
before you take that as a green light, you should know that other studies have found a clearcut
link.
For instance, one study of nearly 900 people found that women who used permanent hair
dye at least once a month were twice as likely as women who did not use permanent hair
dye to develop bladder cancer.
Meanwhile, those who reported regular use of the hair dye for at least 15 years were more
than three times as likely to develop bladder cancer as non-dye users.
A separate study also found that women who use hair dyes for more than 20 years may
nearly double their risk of developing rheumatoid arthritis.