January 2025 in “International Journal of Advanced Research in Science Communication and Technology” Polyherbal hair dyes are safer and more eco-friendly than chemical dyes.
November 2025 in “Journal of Ayurveda and Integrated Medical Sciences” Herbal hair dyes are safe, effective, and beneficial for hair health.
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.
April 2024 in “Pharmacognosy research” The herbal hair dye with natural ingredients like henna was successfully made and tested, but more research is needed on its effectiveness on different hair colors and benefits.
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January 2010 The herbal hair dye is a safe and eco-friendly alternative to conventional dyes.