Glycyrrhizic acid and licorice extract can significantly reduce unwanted hair growth.
April 2019 in “Journal of Investigative Dermatology” Increasing COX-2 in mouse skin causes bigger sebaceous glands and thinner hair, but stopping COX-2 can reverse hair thinning.
September 2016 in “Journal of dermatological science” TSC2 is crucial for proper hair follicle development and patterning.
111 citations,
January 2007 in “Seminars in cell & developmental biology” Hair, teeth, and mammary glands develop similarly at first but use different genes later.
63 citations,
April 2005 in “Mechanisms of development” Mice with too much Claudin-6 have skin barrier problems and abnormal hair growth.
60 citations,
August 2008 in “Human molecular genetics online/Human molecular genetics” A position effect on the TRPS1 gene causes excessive hair growth in humans and mice.
59 citations,
March 2008 in “The journal of investigative dermatology/Journal of investigative dermatology” Smad-4 and Smad-7 are key in hair follicle development, with other Smads being less important.
321 citations,
January 2012 in “Cell stem cell” TGF-β2 helps activate hair follicle stem cells by counteracting BMP signals.
321 citations,
December 2009 in “Journal of Dermatological Science” Dermal cells are key in controlling hair growth and could potentially be used in hair loss treatments, but more research is needed to improve hair regeneration methods.
77 citations,
April 2016 in “Science Advances” Researchers created a fully functional, bioengineered skin system with hair from stem cells that successfully integrated when transplanted into mice.
72 citations,
November 2017 in “Journal of developmental biology” The Hedgehog signaling pathway is important for skin and hair growth and can lead to cancer if it doesn't work right.
60 citations,
March 2011 in “Proceedings of the National Academy of Sciences of the United States of America” RANK-RANKL signaling is essential for hair growth and skin health.
50 citations,
November 2010 in “Plastic and Reconstructive Surgery” Botox increased hair count in men with baldness and might work by improving scalp blood flow.
32 citations,
June 2013 in “Journal of Investigative Dermatology” Mice without certain skin proteins had abnormal skin and hair development.
21 citations,
June 2018 in “Current Opinion in Genetics & Development” Scientists have made progress in growing mini-organs and regenerating parts of the skin, with plans to treat hair loss in a future trial.
2 citations,
April 2021 in “International Journal of Molecular Sciences” The study concluded that changing the culture conditions can cause sika deer skin cells to switch from a flat to a 3D pattern, which is important for creating hair follicles.
1 citations,
September 2022 in “Pharmaceutics” The stiffness of a wound affects hair growth during healing, with less stiff areas growing more hair.
January 2024 in “bioRxiv (Cold Spring Harbor Laboratory)” The gene Ascl4 is not necessary for the development of hair, teeth, or mammary glands.
November 2020 in “Journal of Cosmetic Dermatology” The vertical method is better for assessing scalp mobility, providing more hair for transplant.
April 2021 in “Journal of Investigative Dermatology” Cyclooxygenase-2 overexpression in mice skin causes hair loss like human androgenetic alopecia.
1 citations,
January 2012 in “International journal of trichology” Sheep hair follicle cells can grow a lot but need the dermal papilla to do so.
2 citations,
June 2022 in “Molecules” Connarus semidecandrus Jack extract promotes hair growth and thickness, reduces prostate cancer cell growth, and could potentially be used as a treatment for hair loss.
179 citations,
June 2000 in “The American journal of pathology” The absence of functional sebaceous glands causes hair follicle destruction and scarring alopecia.
81 citations,
June 2014 in “Cold Spring Harbor perspectives in medicine” Skin has specialized touch receptors that can tell different sensations apart.
36 citations,
April 2016 in “Biochimie” A substance called epidermal growth factor helps increase the growth of important hair follicle cells by activating a specific cell communication route.
17 citations,
September 2016 in “Stem cells translational medicine” Using bioreactors, scientists can grow more skin stem cells that keep their ability to regenerate skin and hair.
3 citations,
January 2023 in “Science advances” The enzymes Tet2 and Tet3 are important for skin cell development and hair growth.
Certain natural products may help stimulate hair growth by affecting stem cell activity in the scalp.
April 2021 in “Journal of Investigative Dermatology” Stem cells control their future role by changing ERK signal timing, affecting tissue regeneration and cancer.
39 citations,
September 2007 in “BMC developmental biology” Neuregulin3 affects cell development in the skin and mammary glands.