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.
40 citations
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February 2002 in “International Journal of Dermatology” Permanent hair dye damages hair but it mostly recovers after 8 weeks; using certain hair care products can help repair it.
October 2024 in “UNESP Institutional Repository (São Paulo State University)” Straightening and dyeing damage hair structure.
May 2026 in “Zenodo (CERN European Organization for Nuclear Research)” The herbal hair dye gel is a safe and effective natural alternative to chemical dyes, improving hair and scalp health.
5 citations
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December 2018 in “Journal of The American Academy of Dermatology” Some hair products can create false signs on scalp examinations, leading to wrong diagnoses.
November 2016 in “University of the Arts London Research Online (University of the Arts London)” Shampoos with polymers and dyes help maintain and enhance hair color vibrancy.
Haircare products may expose users to harmful chemicals despite regulations.
5 citations
,
April 2018 in “Chem” Graphene-based hair dye is a safe, durable, and effective alternative to traditional black hair dyes.
20 citations
,
June 2011 in “ISRN Dermatology (Print)” A woman lost most of her hair due to an allergic reaction to a hair dye ingredient.
October 2025 in “Coloration Technology” Delipidised wool is brighter, dyes better, and is more eco-friendly.