66 citations
,
August 2001 in “Experimental Dermatology” Human hair follicle cells can grow hair when put into mouse skin if they stay in contact with mouse cells.
19 citations
,
January 1997 in “Endocrinology” Testosterone can slow hair growth in adult monkeys, but a blocker called RU 58841 can counteract this and potentially help hair regrow.
7 citations
,
December 2010 in “대한의생명과학회지” Hair growth after depilation increases skin thickness, mast cell counts, and cell activity.
5 citations
,
July 2024 in “International Journal of Women’s Dermatology” Scalp allergic reactions are often missed, needing specific tests and avoiding certain hair products for proper treatment.
4 citations
,
February 2025 in “Clinical Cosmetic and Investigational Dermatology” Hair affects self-image and well-being, varying by gender, ethnicity, and country.
3 citations
,
August 2021 in “Clinics in Dermatology” Minoxidil is the main over-the-counter treatment for hair loss, with other options like finasteride, latanoprost, retinoic acid, antioxidants, biotin, nutraceuticals, and platelet-rich plasma therapy also showing promise.
Interest in COVID-19 hair loss increased during COVID-19 surges, especially in higher-income countries.
18 citations
,
April 2010 in “Archives of Dermatology” Psoriasis or contact dermatitis can override alopecia areata, allowing hair growth.
August 2025 in “International Journal of Molecular Sciences” Topical minoxidil 5% is the most effective over-the-counter treatment for male hair loss.
2 citations
,
May 2021 in “Journal of the Endocrine Society” Men with high genetic risk for Polycystic Ovary Syndrome (PCOS) have increased chances of obesity, type 2 diabetes, heart disease, and hair loss, showing PCOS risk factors can affect both genders.
Ostrich antibodies can help restore hair growth in people with a specific type of hair loss, increasing hair count by 71% on average.
October 2025 in “Journal of Cosmetic Dermatology” Conventional treatments like dutasteride and minoxidil are effective for male hair loss, with some alternative treatments also showing promise.
4 citations
,
March 2007 in “Annales de Dermatologie et de Vénéréologie” Hair care products can cause skin irritation and allergies due to certain chemicals.
March 2026 in “Indian Dermatology Online Journal” Hair dye ingredient PPD can cause severe allergic reactions, including facial swelling.
177 citations
,
April 2008 in “Biomedical Materials” Human hair proteins can be used to create scaffolds that support cell growth for tissue engineering.
24 citations
,
February 2007 in “Laser Physics Letters” Caffeine shampoo penetrates hair follicles deeply and stays for up to 48 hours.
15 citations
,
February 2014 in “BMC Research Notes” The X5 Hairlaser might help treat male hair loss, but more research is needed.
Finasteride improves hair but may reduce sperm quality at higher doses.
The tool accurately measures hair count and size on scalps with 79.45% and 68.19% accuracy, respectively.
59 citations
,
September 2003 in “Journal of steroid biochemistry and molecular biology/The Journal of steroid biochemistry and molecular biology” Epitestosterone may counteract testosterone's effects and has roles in body processes like prostate growth and hair distribution.
Autophagy helps activate hair stem cells and hair growth by changing their energy use to glycolysis.
Check hormone levels and blood counts before surgery in dogs with abnormal blood cell counts.
July 2025 in “E-methodology” AI can improve hair care but needs legal clarity and is not widely used in Poland yet.
16 citations
,
February 2018 in “Journal of The American Academy of Dermatology” Scalp biopsies from dermatomyositis patients show chronic hair loss without scarring, with mucin and blood vessel changes being very common.
December 2025 in “Skin Appendage Disorders” Topical cetirizine may help increase hair count in androgenetic alopecia.
Caffeine can potentially treat common hair loss by counteracting hair follicle shrinkage caused by hormones.
11 citations
,
May 2009 in “Actas Dermo-Sifiliográficas” Some treatments can help hair regrowth in alopecia areata, but none offer a cure, and effectiveness varies.
3 citations
,
November 2021 in “Case Reports in Infectious Diseases” Syphilis can cause unexpected symptoms like hair loss in well-managed HIV patients, so doctors should stay alert.
2 citations
,
January 2010 Hair density is better measured by counting hairs over 40 microns thick.
January 2025 in “Expert Opinion on Pharmacotherapy” Dutasteride is more effective than finasteride for hair loss but may affect male fertility and should be used cautiously.