April 2026 in “Biomolecules” Squid ink melanin nanoparticles create a safe, long-lasting black hair dye that protects hair and offers UV protection.
9 citations
,
January 2010 The herbal hair dye is a safe and eco-friendly alternative to conventional dyes.
1 citations
,
January 2016 in “Springer briefs in molecular science” Natural plant-based substances can be used as effective hair dyes.
1 citations
,
September 2003 in “Annals of Epidemiology”
January 2026 in “SSRN Electronic Journal” Riboflavin with blue light speeds up hair dyeing, making it faster, safer, and long-lasting with less hair damage.
84 citations
,
April 2015 in “Cosmetics” Hair dyes vary in how long they last and how deeply they penetrate hair.
September 2024 in “Heliyon” Repeated hair dyeing significantly damages hair.
November 2025 in “International Journal of Science and Research Archive” Oxidative dyes damage hair more than semi-permanent dyes, but new technologies help protect hair while coloring.
9 citations
,
November 2000 in “Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE” Dyeing hair can help target and destroy hair follicles selectively.
7 citations
,
June 2019 in “Coloration Technology” Translucent keratin films are better for testing hair dyes.
December 2025 in “Journal of Forensic Sciences” Bleaching hair doesn't affect the accuracy of dye identification using SERS.
6 citations
,
March 2015 in “Journal of The American Academy of Dermatology” Hair dye can make it hard to diagnose scalp conditions correctly.
8 citations
,
March 2015 in “Molecular Medicine Reports” Hair dye ingredient PPD causes cell death and aging in human hair cells by altering microRNA levels.
5 citations
,
January 2004 in “Journal of applied polymer science” Urea helps hair dye penetrate better and last longer.
December 2025 in “Applied and Computational Engineering” Hair dyes can be harmful, but risks vary by person and can be reduced.
1 citations
,
June 2019 in “Journal of Biological and Scientific Opinion” PPD in mehendi can cause serious health problems and needs regulation.
2 citations
,
January 1999 in “Dermatology” 8 citations
,
January 2018 in “Journal of cosmetic dermatology” Conditioners in hair dye reduce damage and improve combability.
17 citations
,
August 1979 in “Journal of The American Academy of Dermatology” A new staining method helps tell growing from resting hairs to diagnose hair loss.
62 citations
,
December 1941 in “Experimental biology and medicine” Eating phenylthiocarbamide made all the rats' hair go gray, but some returned to their original color after stopping.
January 2020 in “대한미용학회지” Permanent hair dye reduces sulfur content in both gray and black-brown hair.
24 citations
,
January 2001 in “International Journal of Cancer” Permanent hair dye use may increase bladder cancer risk, especially in female smokers with certain genetic traits.
2 citations
,
January 2017 in “Journal of Biotechnology Research Center” Hair dyes affect DNA analysis results, with the prepFiler kit working best for hair with follicles.
1 citations
,
July 2016 in “Cosmetics” Black henna tattoos can cause severe allergies to hair and textile dyes, and there's a need for greater public awareness and regulation.
5 citations
,
April 2018 in “Chem” Graphene-based hair dye is a safe, durable, and effective alternative to traditional black hair dyes.
79 citations
,
January 1975 in “Food and Cosmetics Toxicology” The hair dye formulations tested did not cause long-term toxicity or cancer in mice.
March 2021 in “International journal for research in applied science and engineering technology” Herbal hair dyes from tannin-rich plants are effective and safer than synthetic dyes.
3 citations
,
May 2020 in “Annals of the Academy of Medicine Singapore” Hair dye can cause serious scalp issues, including skull erosion.
13 citations
,
February 2008 The new natural sindoor is safe, non-toxic, and eco-friendly.
January 1996 in “대한피부과학회지” Wait at least 8 weeks between hair dyeing for cuticle recovery.