Dyeing and dying – Your hair dye may be worsening your health

Several studies have indicated that hair dye users are at a greater risk of developing cancer. The article cautions that these studies should not generalise all hair dyes as dangerous due to greatly varying contents. However, it also highlights that temporary and semi-permanent hair dyes are safer than permanent hair dyes, due to changes onto the hair’s chemical profile that the latter causes. It closes with three great tips for coloured hair enthusiasts: avoid hair dyes during pregnancy, abide by hair colouring procedures and use dyes with softer ingredients, such as plant-based dyes.

https://www.straitstimes.com/life/is-dyeing-your-hair-bad-for-your-health