July 2024 in “Dermatology and Therapy” Darker hair colors may increase the risk of alopecia areata, while lighter hair colors may decrease it.
Exosome therapy successfully regrew and restored natural hair color in a man with stress-related hair loss.
A natural hair dye from cuttlefish ink and chitosan effectively colors hair black without harmful chemicals.
Coreopsis tinctoria Nutt. extract can effectively dye hair yellow or dark brown with good wash durability.
December 2025 in “Journal of Pharma Insights and Research.” The shampoo naturally colors and conditions hair safely without toxic chemicals.
April 2026 in “Zenodo (CERN European Organization for Nuclear Research)” Natural plant-based hair dyes are safer and eco-friendly alternatives to synthetic dyes.
April 2026 in “Zenodo (CERN European Organization for Nuclear Research)” Natural hair dyes using plants like henna and indigo are safer and eco-friendly alternatives to synthetic dyes.
May 2026 in “Zenodo (CERN European Organization for Nuclear Research)” Natural hair reflects identity and history, while modifications signal social pressures.
May 2026 in “Zenodo (CERN European Organization for Nuclear Research)” Natural hair is a return to its original state, while modifications signal social pressures.
Plant-based dyes are a safe, effective, and eco-friendly alternative to synthetic dyes.
May 2026 in “Zenodo (CERN European Organization for Nuclear Research)” Natural hair dyes are safer but have limited shades and may fade with washing.
November 2025 in “International Journal of Biological Macromolecules” This eco-friendly hair dye method improves hair health and color durability.
May 2026 in “Zenodo (CERN European Organization for Nuclear Research)” The herbal hair dye with Barleria prionitis is a safe, effective, and natural alternative to chemical dyes.
May 2026 in “Zenodo (CERN European Organization for Nuclear Research)” The herbal hair dye is a safe, effective, and natural alternative to chemical dyes.
12 citations
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October 2007 in “PubMed” Keratin helps protect and strengthen hair, reducing damage and color fading.
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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.
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June 2017 in “International Journal of Radiation Biology” Gamma rays did not change hair follicle density but increased white and hypopigmented hairs in mice.
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March 2020 in “Aids Reviews” Hair antiretroviral concentration is affected by hair type, segment position, housing, drug use, sexual behavior, kidney function, and genetics.
November 2025 in “Zenodo (CERN European Organization for Nuclear Research)” Polyherbal hair dye creams are safer, effective, eco-friendly, and economical alternatives to synthetic dyes.
The herbal hair dye using Platycladus orientalis effectively prevents hair loss, covers gray, and is gentle and safe for all ages.
September 2023 in “Scientific reports” Segmental hair analysis can track testosterone over time but needs adjustments for sex, hair color, and washing frequency.
October 2022 in “Linköping University medical dissertations” The method shows hair testosterone levels reflect those in saliva, but are affected by various factors and may indicate a risk for heart attack.
July 2022 in “Research Square (Research Square)” Hair analysis can somewhat track past testosterone levels but is influenced by factors like hair washing, growth rate, sex, and hair color.
August 2022 in “Zenodo (CERN European Organization for Nuclear Research)” The herbal hair dye effectively provides a natural reddish-brown color without synthetic chemicals.
May 2026 in “Zenodo (CERN European Organization for Nuclear Research)” The herbal mehendi gel safely colors hair and nourishes the scalp.
March 2026 in “Zenodo (CERN European Organization for Nuclear Research)” Ratanjot root oil helps hair grow and conditions and colors it naturally.
February 2025 in “Journal of Women & Aging” Older Black women in the UK feel more confident and engaged when their hair is visible and celebrated.
3 citations
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February 2023 in “ACS omega” Grape seed oil improved hair quality the most, followed by rosehip and safflower seed oils, and reduced damage from shampoo.
December 2025 in “Sustainable Chemistry One World” Mangosteen waste can be used as an eco-friendly natural hair dye, producing a lasting reddish color and strengthening hair.
November 2025 in “Journal of Ayurveda and Integrated Medical Sciences” Herbal hair dyes are safe, effective, and beneficial for hair health.