India, Aug. 30 -- Many dye their hair colours as a way of self-expression, fashion statement, or to occasionally freshen up their look. While generally it is viewed as something youngsters may do, many older adults dye their hair to hide grey hair. But hair colours contain chemicals which come with their own risks, and sometimes may also cause severe allergic reactions. While no one is outrightly condemning hair colour or asking you to stop dying completely, knowing about the potential health threats that can happen makes it easier to take precautions and safely colour your hair.

Dr Jasmine Gandhi, medical advisor and consultant dermatologist at Kaya Limited, told HT Lifestyle that permanent colour dyes contain a specific ingredient whic...