Natural hair dye powder is a safe, eco-friendly alternative to synthetic dyes.
November 2025 in “International Journal of Biological Macromolecules” This eco-friendly hair dye method improves hair health and color durability.
1 citations
,
June 2025 in “International Journal of Plant and Environment” Nickel oxide nanoparticles made with plant extract can kill bacteria and fungi and break down dyes.
1 citations
,
December 2021 in “Annals of phytomedicine” The herbal hair dye with a 1:2 henna to indigo ratio works well, is safe, and eco-friendly.
29 citations
,
April 2017 in “Macromolecular bioscience” Scientists created tiny pH-sensing gels that can safely measure the pH levels inside hair follicles.