research Effects on the Hair Texture Improvement of Bleach Hair in Case when Applying Castor Oil February 2021 in “Journal of the Korean Society of Cosmetology” Castor oil improves the texture of bleached hair by increasing its strength.
research Successful White Hair Removal with Combined Coloring and Intense Pulsed Light (IPL): A Randomized Clinical Trial 13 citations , July 2011 in “Photomedicine and laser surgery” Coloring white hair before IPL treatment effectively helps remove it.
research Development and Physicochemical Evaluation of a Polyherbal Dual-Action Shampoo for Hair Coloring and Conditioning December 2025 in “Journal of Pharma Insights and Research.” The shampoo naturally colors and conditions hair safely without toxic chemicals.
research Current status of genus Impatiens: Bioactive compounds and natural pigments with health benefits 11 citations , February 2021 in “Trends in Food Science and Technology” Impatiens plants have health-promoting compounds and are used for natural food coloring, but more research is needed to understand their full benefits.
research A discourse on human hair fibers and reflections on the conservation of drug molecules 47 citations , June 1996 in “International Journal of Legal Medicine” Hair analysis for drugs needs a better understanding of how drugs enter hair, considering factors like hair structure and pigmentation.