November 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” The study found markers indicating that cells responsible for hair color are differentiating in specific areas of the hair follicle.
June 2021 in “bioRxiv (Cold Spring Harbor Laboratory)” The gene Tfap2b is essential for creating a type of stem cell in zebrafish that can become different pigment cells.
April 2012 in “Development” Rac1 is crucial for normal hair structure and pigmentation.
January 2004 in “Linchuang pifuke zazhi” All-trans retinoic acid helps amelanotic melanocytes in hair follicles develop and produce pigment while reducing their growth.
January 2004 in “Linchuang pifuke zazhi” Black hairs have more pigment-related genes, while gray hairs have more keratin-related genes.
June 1995 in “Archives of Dermatology” A woman's hair loss was due to trichotillomania, which is often misdiagnosed and can require different treatments based on age and underlying conditions.
January 1961 in “The Journal of Anthropological Society of Nippon” Hair form in mixed-blood families varies due to hereditary twist-knots and pigment formation.
March 2026 in “Dyes and Pigments” Riboflavin and blue light speed up genipin hair dye, making it fast, glossy, stable, and eco-friendly.
November 2019 in “Quality in primary care” Scalp micropigmentation is a tattooing method that can mimic a full head of hair without surgery and has no healing time.
October 2021 in “West African journal of medicine” Hair loss in women in Lagos, Nigeria is rare but severe when it occurs, with symptoms similar to those seen worldwide.