January 2026 in “SSRN Electronic Journal” Riboflavin with blue light speeds up hair dyeing, making it faster, safer, and long-lasting with less hair damage.
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May 2012 in “PloS one” This study found that non-pigmented hair follicles have significantly lower expression of nucleotide excision repair genes, which may be associated with reduced melanin production capacity in these follicles.
January 1961 in “The Journal of Anthropological Society of Nippon” This study examined hair from a mixed-heritage family and suggested that variations in pigment formation significantly influence hair form, including the occurrence of twist-knots.
January 2004 in “Linchuang pifuke zazhi” In this study, all-trans retinoic acid was found to promote differentiation and inhibit proliferation of amelanotic melanocytes from human hair follicles, suggesting a potential role in melanogenesis.
In this study, the researchers analyzed skin samples from Dun Mongolian horses to uncover molecular pathways linked to the "Bider" marking, identifying differential gene expression and several pigment-related signaling pathways that may play key roles in its formation.
