E Minamata disease Q&A

Mercury in human body

Q5: Can the methylmercury in the hair be reduced during daily life?

A5: Part of it is removed by permanent wave.

Commentary:
Methylmercury in hair is so stable that it cannot be washed out when the hair is shampooed.
It is also hardly affected by chemical solutions such as hair dyes, but 30 - 50% of methylmercury is removed by permanent wave, because the solutions used contain an ingredient (thioglycolic acid) that has the effect of removing methylmercury.