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.
December 2025 in “Journal of Society of Cosmetic Chemists of Japan” This study found that massaging hair treatments into hair improved the treatment's effectiveness by reducing hair waviness and enhancing shape cohesion.
17 citations
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May 2019 in “Molecules” This study found that domestic temporary hair dyes may pose a health risk due to their cytotoxic effects on human red blood cells and NIH/3T3 cell lines.
5 citations
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June 2023 in “BMC genomics” This study found that a specific genetic mutation in the Fgf5 gene may contribute to the long-hair trait in Angora rabbits by reducing the binding capacity of the FGF5 protein.
4 citations
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July 2022 in “The Journal of Clinical Endocrinology & Metabolism” This study identified a novel homozygous mutation in the 5'-UTR of the POMC gene, suggesting a new molecular mechanism for the syndrome of adrenal insufficiency, obesity, and red hair.
