24 citations
,
April 2016 in “Experimental Dermatology” Chemical treatments like dyeing, perming, and bleaching damage hair by altering amino acids and lipids.
17 citations
,
May 2021 in “Journal of Cell Science” N1-acetylspermidine promotes hair follicle stem cell self-renewal.
11 citations
,
September 2019 in “The journal of investigative dermatology/Journal of investigative dermatology” A specific group of skin stem cells was found to help maintain hair follicle cells.
9 citations
,
June 2020 in “European Radiology Experimental” 15-Gy x-ray irradiation temporarily alters rat calvaria skin without causing significant inflammation or fibrosis.
2 citations
,
December 2025 in “Cosmetics” Proper scalp care can improve hair health and delay ageing signs.
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.
2 citations
,
January 2022 in “Anais brasileiros de dermatologia/Anais Brasileiros de Dermatologia” Chemical hair straighteners can cause scalp and hair damage, but long-term effects are unclear.
August 2024 in “Stem Cell Research & Therapy” New regenerative therapies show promise for treating hair loss.
June 2024 in “Regenerative Therapy” Exosomes from stem cells may help rejuvenate skin and regrow hair, but more research is needed.
November 2025 in “Wiley Interdisciplinary Reviews Forensic Science” Hair testing is a useful method for detecting past substance use and recent advancements improve its accuracy and reliability.
November 2024 in “Burns & Trauma” Skin organoids help improve wound healing and tissue repair.
February 2024 in “International Journal of Molecular Sciences” Hair loss in Androgenetic Alopecia is caused by genetics, aging, and lifestyle, leading to hair follicle shrinkage and related health risks.
February 2024 in “International journal of molecular sciences” Type 3 Innate Lymphoid Cells help maintain skin health and balance, and are involved in skin diseases and healing.
506 citations
,
March 2005 in “The Journal of Clinical Endocrinology and Metabolism” Testosterone therapy improves physical function, strength, and body composition in older men with low testosterone levels.
195 citations
,
February 2007 in “The Journal of Clinical Endocrinology and Metabolism” Dutasteride and finasteride may reduce sperm count and volume but don't affect movement or shape; effects are reversible after stopping.
192 citations
,
January 1976 in “The Journal of Clinical Endocrinology & Metabolism” Androgen levels increase with puberty and are linked to sexual hair development.
186 citations
,
February 1980 in “Clinical Endocrinology” During puberty, hormone levels rise, with early increases in some steroids and most menstrual cycles becoming regular by six years after menarche.
163 citations
,
November 2003 in “Journal of Investigative Dermatology” Low iron levels may be linked to some types of hair loss in women.
142 citations
,
February 1985 in “Fertility and sterility” Spironolactone reduced hair thickness and some testosterone levels in women with excessive hair growth.
121 citations
,
January 1991 in “Acta dermato-venereologica” Terbinafine quickly builds up in skin and hair, staying effective for over 3 weeks.
89 citations
,
December 2006 in “Lancet Oncology” Taking 1 mg/day finasteride for hair loss significantly lowers PSA levels in men, which may affect prostate cancer screening.
83 citations
,
November 2002 in “British Journal of Dermatology” Low iron levels are not directly linked to chronic hair loss and iron supplements may not help.
83 citations
,
April 1992 in “Clinical Endocrinology” Having enough iron improves the effectiveness of a specific hair loss treatment in women.
78 citations
,
August 2012 in “Human molecular genetics online/Human molecular genetics” A new gene, JMJD1C, may affect testosterone levels in men.
77 citations
,
October 2007 in “International Journal of Andrology” Testosterone with or without finasteride doesn't improve thinking skills in older men with low testosterone.
77 citations
,
September 1983 in “Acta Paediatrica” Dexamethasone effectively normalizes elevated steroid levels in girls with premature adrenarche.
73 citations
,
January 2013 in “Annals of Dermatology” People with hair loss, especially those with certain types, have lower zinc levels, and zinc supplements might help.
72 citations
,
April 2008 in “The Journal of urology/The journal of urology” Dutasteride and finasteride do not significantly affect bone density, blood fats, or blood production, but slightly lower PSA levels and minimally impact sexual function in healthy young men.
71 citations
,
January 2016 in “International Journal of Trichology” Biotin deficiency is not a major cause of hair loss in women, so biotin supplements are not likely to be an effective hair loss treatment.
65 citations
,
January 2009 in “Annals of Dermatology” Zinc supplements increased zinc levels in some hair loss patients but didn't significantly improve hair growth.