June 2024 in “Journal of Clinical Medicine” Hair dye can cause severe scalp burns and long-term health risks, so safety guidelines must be followed.
July 2023 in “Biomolecules” The new "whisker follicle microinjection assay" can test how different biomolecules affect hair growth and color.
January 2016 in “International archives of medicine” Hair coloring is strongly linked to hair damage and scalp problems.
18 citations
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July 2015 in “Journal of cosmetic dermatology” Straightening and coloring hair, especially with sodium hydroxide, greatly increases protein loss.
13 citations
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November 2016 in “Human & Experimental Toxicology” Maternal exposure to artificial food coloring may increase skin disease risk in rat offspring.
5 citations
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January 2004 in “Journal of applied polymer science” Urea helps hair dye penetrate better and last longer.
January 2004 in “Linchuang pifuke zazhi” A man lost hair permanently from a salon burn, and surgery was needed to fix the scar.
6 citations
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October 2003 in “Journal of applied polymer science” A new method using poly(ethylene imine) improves hair dyeing at lower temperatures with better color retention.
December 2023 in “Modern engineering and innovative technologies” 19 citations
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May 2010 in “Surface and interface analysis” 18-MEA is essential for hair's water resistance, and a conditioner with 18-MEA and SPDA can restore it.
September 2018 in “PubMed” Hair becomes thinner, grayer, and may fall out more as people get older, and styling habits can worsen these effects.
47 citations
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January 2013 in “Indian Journal of Dermatology, Venereology and Leprology” Premature graying of hair may suggest health issues and currently lacks effective treatments.
19 citations
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January 2012 in “Annals of Dermatology” People need more information about hair dye ingredients and side effects.
17 citations
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January 2013 in “International Journal of Cosmetic Science” Higher metal levels in hair are linked to poorer perceived hair health.
6 citations
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October 2006 in “International Journal of Dermatology” Hair splitting and nail detachment are linked conditions.
1 citations
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October 2023 in “PloS one” Cosmetic hair treatments can increase hair testosterone levels, while natural hair color does not affect it.
1 citations
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January 2012 in “Human health handbooks” Hair color is determined by melanin types and gene activity.
Bleaching hair twice makes it very dry and weak.
January 2026 in “MitraMas Jurnal Pengabdian dan Pemberdayaan Masyarakat” Students' knowledge about hair health significantly improved after the workshop.
Premature graying of hair is linked to vitamin D and B12 deficiencies, thyroid issues, iron imbalance, stress, and lifestyle habits, and affects quality of life.
June 2010 in “DR-NTU (Nanyang Technological University)” Hair coloring and chlorine change hair strength differently.
January 2005 in “Seibutsu Butsuri/Seibutsu butsuri” Chemical treatments damage hair more than UV exposure, making it thinner and less flexible.
February 2003 in “Journal of Cutaneous Medicine and Surgery” Fine hairs improve male pattern baldness treatment, alopecia areata causes remain unknown, and hair can recover from dye damage over time.
January 1996 in “대한피부과학회지” Wait at least 8 weeks between hair dyeing for cuticle recovery.
2 citations
,
December 1988 in “PubMed” C.I. Acid Orange 3 caused cancer in female rats but not in male rats or mice.
Some plant-based ingredients may help with hair growth and care, but more research is needed to confirm their effectiveness.
13 citations
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March 2010 in “International Journal of Cosmetic Science” Hair coloring increases copper and calcium uptake, damaging hair and reducing shine.
November 2025 in “Zenodo (CERN European Organization for Nuclear Research)” Oxidative dyes damage hair more than semi-permanent dyes, but new technologies help protect hair while coloring.
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.