9 citations
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January 2010 This study reports that a 100% herbal hair dye composed primarily of Cymphomandra betacea, Tagetes erecta, and Aloe vera gel provides permanent hair color without causing hair damage, loss, or skin irritation compared to synthetic dyes.
March 2021 in “International journal for research in applied science and engineering technology” In this study, researchers explored the use of natural herbal hair dyes made from tannin-producing plants like henna and pomegranate, reporting that these dyes can permanently color hair without causing damage or irritation, unlike synthetic dyes.
1 citations
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June 2025 in “International Journal of Plant and Environment” This study found that nickel oxide nanoparticles synthesized using Alternanthera sessilis extract may have potential as antimicrobial, antifungal, and dye-removal agents.
April 2026 in “Cosmetics” This study developed and tested a shampoo with semi-permanent dyes designed to gradually cover gray hair, reporting maintained stability and effective gray–black coloration on high-canities hair tresses through eight wash cycles.
January 2025 in “International Journal of Advanced Research in Science Communication and Technology” Results are not reported for this study exploring how herbal hair dye, made from natural plant-based ingredients, might promote glossier, longer, and thicker hair while covering gray.