67 citations
,
November 2019 in “Molecules” Tea, especially green tea, shows promise in cosmetics for skin and hair benefits but more research is needed for effective use.
3 citations
,
January 2016 in “International Journal of Trichology” Sheep-derived factors improve human hair cell clustering, which may help hair growth.
198 citations
,
March 1999 in “Journal of Investigative Dermatology” Keratin 15 helps maintain tissue integrity and is reduced in activated keratinocytes.
2 citations
,
September 2023 in “International journal of molecular sciences” Special proteins are important for skin balance, healing, and aging, and affect skin stem cells.
5 citations
,
October 2022 in “Cosmetics” Cell-based models help test if cosmetic ingredients really work for hair growth and skin health.
7 citations
,
March 2020 in “Journal of King Saud University. Science/Maǧallaẗ ǧāmiʹaẗ al-malik Saʹūd. al-ʹUlūm” AiQingHua oil improves blood flow and promotes hair growth in mice.
16 citations
,
July 1994 in “Journal of Dermatological Science” Minoxidil sulfate and pinacidil may promote hair growth through increased blood flow, not by activating potassium channels.
March 2026 in “International Journal of Dermatology” Changes in scalp microbes may contribute to hair loss, suggesting new treatment options.
33 citations
,
August 2009 in “Journal of Investigative Dermatology” Overexpressing the epigen gene in mice leads to enlarged sebaceous glands and greasy fur.
June 2026 in “Frontiers in Cell and Developmental Biology” Dermal papilla cells are key to fine wool growth in sheep.
January 1989 in “Handbook of experimental pharmacology” Drugs can change hair growth and this is important because it can upset people.
43 citations
,
September 2017 in “Lasers in Surgery and Medicine” LED light therapy may help hair growth by activating certain cell pathways.
February 2024 in “Journal of Dermatological Science” Curved hair can develop when hair cells merge abnormally during growth.
January 2025 in “International Journal of Pharmacognosy and Clinical Research” The herbal scalp serum may help hair growth by reducing DHT levels.
August 2023 in “Micromachines” The new method can create hair follicle-like structures but not complete hair with roots and shafts, needing more improvement.
1 citations
,
June 2021 in “bioRxiv (Cold Spring Harbor Laboratory)” Activating β-catenin in mammary cells leads to changes that cause early-stage abnormal growths similar to skin structures.
14 citations
,
December 2021 in “International journal of molecular sciences” Growth hormone levels affect hair growth and loss, with too much causing excess hair and too little leading to hair loss.
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.
27 citations
,
September 2012 in “Dermatologic Clinics” The document concludes that using specific tools and tests is essential for identifying the cause of hair loss and deciding on the right treatment.
September 2023 in “Scientific reports” Segmental hair analysis can track testosterone over time but needs adjustments for sex, hair color, and washing frequency.
July 2022 in “Research Square (Research Square)” Hair analysis can somewhat track past testosterone levels but is influenced by factors like hair washing, growth rate, sex, and hair color.
8 citations
,
June 2022 in “Scientific Reports” LGR5 is a common marker of hair follicle stem cells in different animals and is important for hair growth and regeneration.
51 citations
,
February 2004 in “Journal of Investigative Dermatology” MCSP may help identify and regulate skin stem cells, affecting hair growth and regeneration.
13 citations
,
April 1994 in “Journal of Investigative Dermatology” Androgen receptors found in monkey scalps, similar to humans, affect hair growth.
March 2025 in “International Journal of Molecular Sciences” The study created a mouse model to better understand hair follicle stem cells' role in hair growth and repair.
39 citations
,
July 2013 in “Journal of dermatological science” Hair microRNAs could be effective biomarkers for diagnosing scleroderma.
January 2018 in “Springer eBooks” Gender affects hair and scalp characteristics, with differences in hormone responses, graying patterns, and trace metals.
1 citations
,
May 2017 in “InTech eBooks” Hair loss in Androgenetic alopecia (AGA) is due to altered cell sensitivity to hormones, not increased hormone levels. Hair growth periods shorten over time, causing hair to become thinner and shorter. This is linked to miscommunication between cell pathways in hair follicles. There's also a change in gene expression related to blood vessels and cell growth in balding hair follicles. The exact molecular causes of AGA are still unclear.
30 citations
,
December 1999 in “Journal of Investigative Dermatology Symposium Proceedings” Steroids, particularly estrogens and 5α-reductase inhibitors, affect blood vessel-related hair growth processes in hair follicle cells.
January 2023 in “Journal of applied animal research” Short photoperiods improve cashmere growth and quality in goats by changing hormone levels and gene expression.