Daijiworld Media Network - Mumbai
Mumbai, Oct 26: In today’s beauty-conscious world, changing hair colour has become a common trend among both men and women. From concealing greys to trying out bold fashion hues, hair dyes offer an instant transformation. However, experts caution that frequent or improper use of chemical-based hair dyes may not only damage hair but could also strain kidney function over time.
Hair dye formulations often contain synthetic chemicals such as para-phenylenediamine (PPD) and amino phenols. When applied to the scalp, these substances can be absorbed into the bloodstream and eventually processed by the kidneys. Studies, including one published in the Journal of the Pakistan Medical Association, have linked excessive exposure to PPD with serious kidney issues such as acute renal failure.

Warning Signs to Watch For
Kidney damage doesn’t always present immediate symptoms, but frequent dye users may experience:
• Swelling in legs, ankles, or hands
• Fatigue or nausea
• Reduced or dark urine output
• Itching or puffiness around the eyes
Health experts suggest that individuals with pre-existing conditions like diabetes, high blood pressure, or chronic kidney disease should exercise extra caution when using hair dye.
Safer Colouring Options
For those who love colouring their hair, gentler alternatives are available:
• Natural dyes like henna and indigo offer chemical-free colouring with conditioning benefits.
• Ammonia-free and PPD-free products minimise allergic reactions and kidney stress.
• Herbal tints and semi-permanent colours fade gradually and contain fewer synthetic agents.
Safety Tips for Dye Users
Dermatologists recommend following these steps for safer application:
• Always perform a patch test before each use.
• Wear gloves and ensure good ventilation during application.
• Avoid leaving dye on longer than directed.
• Rinse thoroughly to remove all residue.
• Stay hydrated and maintain a kidney-friendly diet.
While colouring hair occasionally poses minimal risk, regular and careless use of harsh dyes could have long-term effects on overall health. Experts stress that understanding product ingredients and prioritising safe beauty practices are key to preserving both hair and kidney health.