19 citations
,
July 1964 in “PubMed” Hair follicle cells become four types: medulla, cortex, cuticle, and inner root sheath.
13 citations
,
January 1993 in “Archives of dermatological research” Human hair follicles can grow and stay healthy for up to 8 days in a lab setting.
4 citations
,
July 2022 in “Annals of translational medicine” Scientists created complete hair-like structures by growing mouse skin cells together in a special gel.
2 citations
,
January 2022 in “International Journal of Medical Sciences” Kartogenin may help treat hair loss by promoting hair growth and extending the hair growth phase.
2 citations
,
November 2003 in “Humana Press eBooks” Hair follicle cells can help heal wounds and study skin diseases.
June 2024 in “The Journal of Nutritional Biochemistry” 1,25-(OH)2D3 helps hair grow by blocking certain harmful signals.
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.
January 2008 in “Bradford Scholars (University of Bradford)” Alopecia areata may be caused by antibodies targeting specific hair follicle proteins, hindering hair growth.
April 2017 in “Journal of Dermatological Science” Asymmetric hair follicle differentiation causes the unique shape of kinky hair.
August 2016 in “Journal of Investigative Dermatology” Blocking the CCR5 receptor may be a new way to treat hair loss from alopecia areata.
July 2024 in “Skin Research and Technology” The products significantly promote hair growth and maintain hair bulb health.
115 citations
,
January 2014 in “Journal of Cutaneous and Aesthetic Surgery” Platelet-rich plasma (PRP) is a cheap and easy treatment for hair loss, but not suitable for everyone. It also helps in healing ulcers, rejuvenating skin, and improving hair transplants.
50 citations
,
September 2014 in “Stem cell reports” BLIMP1 is essential for skin maintenance but not for defining sebaceous gland progenitors.
35 citations
,
January 2011 in “Journal of Biological Chemistry” sPLA2-X is crucial for normal hair growth and follicle health.
31 citations
,
April 2019 in “Journal of Cutaneous Pathology” Hair becomes gray and thin as we age, and while most hair loss in older people is due to genetics, there's a chance for gray hair to regain color under certain conditions.
29 citations
,
January 2021 in “Journal of Investigative Dermatology” Fat under the skin releases HGF which helps hair grow and gain color.
28 citations
,
January 2007 in “Dermatology” Chemotherapy can cause rapid, extensive hair loss, with patterns varying between individuals.
5 citations
,
March 2001 in “Journal of biomechanics” Growing hairs are easier to pull out than resting hairs due to different anchorage strengths.
4 citations
,
January 2018 in “Advances in Experimental Medicine and Biology” The document concludes that hair follicles have a complex environment and our understanding of it is growing, but there are limitations when applying animal study findings to humans.
2 citations
,
January 2000 in “Journal of Toxicologic Pathology” A single recessive gene causes sparse hair in certain Japanese White rabbits.
1 citations
,
December 2023 Hair grows in cycles and changes with age, starting from fetal development.
June 2026 in “Frontiers in Cell and Developmental Biology” Dermal papilla cells are key to fine wool growth in sheep.
November 2025 in “Scientific Reports” COVID-19 may cause hair loss by affecting hair follicles.
January 2024 in “Indian Journal of Pharmaceutical Sciences” Relaxing the Arrector Pili Muscle might make curly hair straighter.
October 2019 in “Skin appendage disorders” The vitreous membrane in hair follicles changes shape during the hair cycle and may affect hair growth and nutrient exchange.
April 2012 in “Informa Healthcare eBooks” The document concludes that diagnosing hair loss requires evaluating multiple histological features, as no single feature is definitive on its own.
43 citations
,
January 2016 in “Cellular physiology and biochemistry” Epidermal Growth Factor helps hair follicle cells grow and move by activating a specific cell signaling pathway.
29 citations
,
December 2005 in “BioEssays” Wnt/ß-catenin signaling is crucial for regulating skin stem cells and hair growth, with the right levels and timing needed for proper function.
24 citations
,
June 1999 in “Mechanisms of Development” Ornithine decarboxylase is crucial for hair growth and follicle development.
9 citations
,
August 2007 in “Journal of animal science/Journal of animal science ... and ASAS reference compendium” Sheep wool follicles absorb different amino acids at various rates and locations, which could affect wool growth based on diet and genetics.