June 2023 in “Animal Bioscience” Vimentin and transthyretin proteins are linked to black coat color in sheep.
December 2017 in “JURNAL FARMANESIA” Red dragon fruit peel extract can effectively dye gray hair black.
January 2016 in “Huanjing yu Jiankang Zazhi”
5 citations
,
July 2006 in “Contact dermatitis” Ammonium bisulfite in hair bleach can cause facial eczema.
18 citations
,
July 2015 in “Journal of cosmetic dermatology” Straightening and coloring hair, especially with sodium hydroxide, greatly increases protein loss.
14 citations
,
January 1996 in “Journal of Forensic Sciences” Hair can absorb and transfer opiates when soaked in water, with damaged hair absorbing more.
3 citations
,
September 2023 in “Journal of Photochemistry and Photobiology A Chemistry” 2 citations
,
January 1990 4 citations
,
June 2022 in “Journal of cleaner production” New eco-friendly method strengthens and sets hair using light and causes less damage.
January 2017 in “Durham e-Theses (Durham University)” Chemical stressors damage hair structure but the skin's outer layer protects living cells.
2 citations
,
December 2025 in “Nano Letters” The new dressing speeds up wound healing by fighting bacteria and boosting natural electric fields.
December 2021 in “2021 International Conference on Electronic Information Technology and Smart Agriculture (ICEITSA)” Chemical dyes damage hair's internal structure more than perming, as shown by a special imaging technique.
69 citations
,
January 2009 in “Advances in Materials Science and Engineering” Wool keratin is reactive, biocompatible, biodegradable, and can model keratin from other sources.
157 citations
,
April 1997 in “International journal of legal medicine” Cosmetic hair treatments like bleaching and dyeing reduce drug levels in hair samples.
4 citations
,
June 2020 in “JAAD case reports” Permanent hair dye may cause total hair loss.
1 citations
,
January 1984
June 2026 in “Zenodo (CERN European Organization for Nuclear Research)” Henna is a safer alternative to synthetic hair dyes but has limited color options.
October 2012 in “Sax's Dangerous Properties of Industrial Materials” 47 citations
,
June 2015 in “Contact Dermatitis” A standardized patch test for hair cosmetics is needed in Europe to prevent allergies, especially for hairdressers.
April 2024 in “JCT research” 45 citations
,
March 1997 in “Journal of Investigative Dermatology” 1 citations
,
January 2023 in “Chemical Engineering Journal” Yak hair stretches mainly due to macromolecules slipping past each other.
162 citations
,
August 2005 in “The journal of investigative dermatology/Journal of investigative dermatology” The new "differential stripping" method effectively measures how much substance gets into hair follicles.
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.
19 citations
,
January 2012 in “Annals of Dermatology” People need more information about hair dye ingredients and side effects.
1 citations
,
March 2005 in “International Journal of Cosmetic Science” Twisting hair weakens it, but strength can be recovered at low twist levels.
4 citations
,
March 2007 in “Annales de Dermatologie et de Vénéréologie” Hair care products can cause skin irritation and allergies due to certain chemicals.
January 2019 in “Journal of the American Leather Chemists Association” Improved mink skin processing can weaken hair attachment.
1 citations
,
January 1988 Cosmetic treatments after chlorination damage hair more than treatments before.