February 2026 in “Brazilian Journal of Implantology and Health Sciences” Chronic stress and high cortisol levels can cause hair loss by disrupting hair growth.
January 2008 in “Acta Anatomica Sinica” Minoxidil promotes hair growth by delaying the hair's resting phase.
66 citations
,
December 2013 in “Nature Cell Biology” Inactive hair follicle stem cells help prevent skin cancer.
May 2021 in “British Small Animal Veterinary Association eBooks” If a dog's skin tests are normal but it has hair loss, consider other non-endocrine causes and choose tests based on the hair loss pattern.
January 2014 in “Surgical and Cosmetic Dermatology” Nutritional supplements can significantly reduce hair loss in telogen effluvium after three months.
February 2020 in “Definitions” Telogen Effluvium is a condition where more hair than usual falls out after stress or fever.
19 citations
,
November 2001 in “Journal of Investigative Dermatology Symposium Proceedings” Human hair follicles can regenerate and recover after severe injury by going through a brief abnormal resting phase before growing again.
8 citations
,
February 2017 in “Archives of Dermatological Research” Intense pulsed light treatment effectively reduces underarm hair by making hair follicles smaller and extending their resting phase.
20 citations
,
January 1995 in “Cells tissues organs” Changing light periods synchronized wool growth cycles in sheep.
9 citations
,
April 2019 in “International journal of molecular sciences” Human hair grows better in a special gel that mimics skin.
January 2024 in “Biological & pharmaceutical bulletin” Panax ginseng extract helps human hair grow by encouraging growth phase transition and cell proliferation while reducing certain protein expression.
1 citations
,
April 1986 in “The Journal of Dermatology” Plant worm extract speeds up hair growth in mice without side effects.
54 citations
,
January 2013 in “BMC Complementary and Alternative Medicine” Thuja orientalis hot water extract may help hair grow by starting the growth phase and improving hair follicle development.
162 citations
,
August 2002 in “Survey of Ophthalmology” Latanoprost can make eyelashes longer, thicker, and darker.
23 citations
,
January 2018 in “BMC genomics” Vimentin is involved in regulating the hair growth cycle in Inner Mongolian Cashmere goats.
3 citations
,
January 2003 SPELA 707, a mix of eight herbal extracts, may help treat hair loss by activating hair growth and increasing hair density.
1 citations
,
January 2023 in “Journal of Clinical Medicine” A new hair restoration technology was found to effectively increase hair thickness, density, and growth, while reducing hair loss and improving scalp health, with no side effects.
April 2024 in “Clinical, cosmetic and investigational dermatology” Salvianolic Acid B helps hair grow by reducing cell stress and increasing blood flow to hair follicles.
2 citations
,
January 2019 in “Annals of Dermatology” Melandrium firmum extract helps mice grow hair by blocking a hair loss enzyme and changing hair growth genes.
53 citations
,
April 1985 in “Developmental Biology” Fibronectin and other basement membrane components increase during hair growth and decrease during rest.
16 citations
,
January 1998 in “Dermatology” Androgens may worsen a natural hair resting phase, possibly leading to hair loss.
12 citations
,
July 1964 in “Archives of Dermatology” Selenium sulfide shampoo doesn't affect hair growth or rest phases.
35 citations
,
December 2014 in “Lasers in surgery and medicine” Red light promotes hair growth by directly stimulating hair cells and improving cell communication.
November 2023 in “Journal of Drug Delivery Science and Technology” Exosomes may help stimulate hair growth and improve hair loss conditions like androgenic alopecia.
154 citations
,
October 1996 in “Proceedings of the National Academy of Sciences of the United States of America” Estrogen affects hair growth and skin cell multiplication.
71 citations
,
February 2000 in “Endocrinology and metabolism/American journal of physiology: endocrinology and metabolism” Estradiol stops hair growth in mice, but an antagonist can reverse this effect.
50 citations
,
August 1999 in “Experimental dermatology” The control system for hair growth cycles is not well understood and needs more research.
3 citations
,
September 2015 in “Plastic and reconstructive surgery/PSEF CD journals” Pulsed Electric Fields can effectively stimulate hair growth in rats.
The estrogen receptor pathway controls hair growth cycles and affects skin cell growth.
414 citations
,
August 2005 in “Nature” Activating TERT in mice skin boosts hair growth by waking up hair follicle stem cells.