September 2011 in “Daehan miyong hakoeji” Henna orange powder, especially with alkali, protects and colors hair better than oxidizing colorants.
99 citations
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June 2005 in “Journal of Cosmetic Dermatology” This article reviews factors influencing hair aging and available treatments like minoxidil and finasteride for androgenetic alopecia but reports no new clinical results.
63 citations
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February 2017 in “ACS biomaterials science & engineering” In this study, polydopamine emerged as a safe and effective alternative to traditional hair dyes like PPD for dyeing gray hair permanently, showing resistance to detergents and causing less toxicity and hair loss in mice.
This study evaluated various herbal blends of powdered leaves, including Henna and Indigo, for their coloring and sensitivity reactions, finding Henna and Indigo to be effective natural colorants for achieving a reddish-brown hair color with better retention than marketed herbal hair dyes.
5 citations
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March 2024 in “Acta Scientiarum Polonorum Technologia Alimentaria” This study synthesized existing research on 11 tropical seed varieties, underscoring their potential in food, pharmaceutical, and agricultural industries due to their phytochemicals and nutrients, such as phenolics and vitamins, which could reduce waste and support sustainable practices.