Can women dye their hair during their period?

Patient's question:

No

Doctor's answer:

During the menstrual period, it is best to avoid hair dyeing. Hair dye contains decolorizing agents and ortho-dyes. Although the carcinogenicity of hair dyes has not been definitively proven, the scalp has over 100,000 pores, and the absorption rate of these chemical agents is very fast. Especially during menstruation, when a woman's immune system is at its weakest, it is advisable to avoid hair dyeing to prevent adverse changes in cells.