53 citations
,
April 2014 in “Experimental Dermatology” Wnt10b makes hair follicles bigger, but DKK1 can reverse this effect.
42 citations
,
March 2006 in “Drug Discovery Today: Therapeutic Strategies” The conclusion is that we need more effective hair loss treatments than the current ones, and these could include new drugs, gene and stem cell therapy, hormones, and scalp cooling, but they all need thorough safety testing.
29 citations
,
September 2012 in “Dermatologic Clinics” Hair disorders are caused by a complex mix of biology, genetics, hormones, and environmental factors, affecting hair growth and leading to conditions like alopecia.
15 citations
,
May 2002 in “PubMed” Hormones, especially DHT, affect hair loss and growth, and targeting specific enzymes may help treat hair loss.
11 citations
,
April 2020 in “Journal of The American Academy of Dermatology” Microinflammation is more intense in smaller hair follicles and may be linked to hair loss.
11 citations
,
June 2019 in “Tissue & Cell” Hair stem cells produce a protein called COL17A1 that plays a key role in their development and is linked to hair thinning and baldness.
10 citations
,
May 2021 in “Clinical, cosmetic and investigational dermatology” UV exposure causes hair thinning, graying, and changes in hair growth cycles in mice.
8 citations
,
April 2017 in “Journal of Dermatological Science” Hair loss is caused by the breakdown of a protein called COL17A1 in hair follicle stem cells.
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.
5 citations
,
August 2012 in “Journal of Dermatology” Tamoxifen may cause female hair loss by increasing androgen receptor expression.
February 2026 in “Nature Communications” Inhibiting connective tissue sheath contraction may improve hair growth in male pattern baldness.
September 2025 in “bioRxiv (Cold Spring Harbor Laboratory)” Hair loss in males and females is influenced by immune cell interactions, with potential treatments identified.
July 2025 in “Biochimica et Biophysica Acta (BBA) - Molecular Cell Research” MicroRNA-22-3p hinders hair regrowth in male pattern baldness by affecting a specific protein.
July 2025 in “World Journal of Stem Cells” Stem cell-derived exosomes could be a promising new treatment for hair regrowth.
June 2025 in “Stem Cell Research & Therapy” Isoproterenol may help treat hair loss by activating hair follicle stem cells.
January 2025 in “Molecules” Caffeine may help with hair loss, but more research is needed to confirm its effectiveness.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” Damaged hair follicle stem cells may leave the skin to help maintain youthfulness.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” Estetrol may help prevent hair loss and promote hair growth in women.
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.
April 2018 in “The journal of investigative dermatology/Journal of investigative dermatology” Higher fluence in hair removal damages hair follicles more, while lower fluence mimics natural hair regression, with long-term IPL treatments effectively reducing hair.
September 2017 in “Journal of Investigative Dermatology” Loss of COL17A1 causes hair follicle stem cells to age and leads to hair loss.
September 2017 in “Pediatric Dermatology” A 14-year-old boy was diagnosed with a rare hair condition that may lead to hair thinning and has no known effective treatments.
July 2004 in “Dermatologic Surgery” A woman had temporary hair loss due to a stress-related condition after a facelift.
February 2015 in “American journal of medical and biological research” Balding hair follicles have less growth-promoting factors and more inhibitory factors, leading to hair loss.
April 2011 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Bald men with male pattern baldness still have hair stem cells, but lack certain cells needed for hair growth.
January 2011 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Bald men with male pattern baldness still have hair stem cells, but lack certain cells needed for hair growth.
January 2011 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Bald men with male pattern baldness still have hair stem cells, but lack certain cells needed to grow hair.
24 citations
,
March 2011 in “British Journal of Dermatology” Men with hair loss have more DNA changes in back-of-head hair follicles, possibly protecting them from thinning.
12 citations
,
June 2024 in “JAAD Case Reports” Tirzepatide may improve hair loss by reducing insulin resistance.
9 citations
,
June 2017 in “Journal of Cutaneous Pathology” People with pemphigus vulgaris and pemphigus foliaceus often have smaller sebaceous glands on their scalp.