63 citations,
February 2017 in “ACS biomaterials science & engineering” Polydopamine is a safe, effective, and permanent hair dye that turns gray hair black in one hour.
10 citations,
August 2012 in “Current Problems in Pediatric and Adolescent Health Care” Hair changes can indicate systemic diseases or medication effects.
19 citations,
January 2015 in “Current problems in dermatology” Ultraviolet rays damage hair, smoking may cause hair loss, and good nutrition is important for hair health, but genetics mainly decide hair thickness.
October 2022 in “Southeast Asian journal of health professionals” Hair greying is seen as a sign of aging; temporary fixes like hair dye are used, but a balanced diet and hair care can help manage it.
62 citations,
January 2003 in “Dermatology” Sunlight worsens hair loss; protect scalp.