September 2017 in “Journal of Investigative Dermatology” Aging causes sweat glands to shrink and move upward, leading to less elastic skin and more wrinkles.
July 2024 in “Journal of Investigative Dermatology” Topical thyroid hormones may boost hair growth.
3 citations
,
December 2024 in “Journal of Animal Physiology and Animal Nutrition” FGF20 is essential for hair follicle stem cell growth and development in fine-wool sheep.
May 2022 in “Dermatology practical & conceptual” Trichoscopy is crucial for diagnosing and managing androgenetic alopecia, showing increased vellus hairs, empty follicles, and fibrosis with severity.
23 citations
,
July 1997 in “British Journal of Dermatology” The inner root sheath is vital for hair follicle stability during growth changes.
40 citations
,
March 2019 in “Pharmaceutical development and technology” Smaller particles of the drug carrier penetrated skin better, with 300 nm size being best for targeting hair follicles.
July 2020 in “Pharmaceutical Research” 53 citations
,
October 1998 in “The journal of investigative dermatology/Journal of investigative dermatology” Topical calcitriol-analogs can reduce hair loss caused by chemotherapy.
January 2002 in “Hair transplant forum international” Finasteride reduces hair follicle cell death in androgenetic alopecia.
405 citations
,
January 2004 in “Journal of Investigative Dermatology” Hair follicle size and distribution vary significantly across different body sites.
September 2025 in “Cellular and Molecular Biology” Intraoperative corticosteroids reduce swelling, and early care lowers folliculitis risk in hair transplant donor sites.
July 2012 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” New treatment with Wnt proteins and growth factors safely increases hair thickness.
2 citations
,
July 2021 in “Actas dermo-sifiliográficas/Actas dermo-sifiliográficas” Hair shaft disorders are diagnosed through examination and history, with general care and some treatments offering improvement.
5 citations
,
May 2004 in “Dermatologic Surgery” A hair restoration technique was introduced that mixes different types of hair groupings to reduce procedure time, limit damage, and potentially increase hair density, suggesting more hair can be transplanted than previously thought.
86 citations
,
October 2013 in “Dermatologic Clinics” Trichoscopy is a useful non-invasive method for diagnosing different hair loss conditions.
30 citations
,
September 2014 in “Journal of Investigative Dermatology” Blocking Sonic Hedgehog signaling may help manage hair loss from chemotherapy.
94 citations
,
March 1996 in “Journal of Investigative Dermatology”
January 2020 in “Medpulse International Journal of General Medicine” Trichoscopy helps diagnose and monitor hair loss, showing different signs at various stages of hair thinning.
March 2026 in “Frontiers in Veterinary Science” All-trans retinoic acid slows cell growth and increases cell death in goat hair follicles through a specific pathway.
22 citations
,
September 1994 in “The Journal of Clinical Endocrinology and Metabolism” Finasteride reduces dihydrotestosterone, increases testosterone, and may treat hirsutism in women.
10 citations
,
May 2008 in “Dermatologic Surgery” Densely packed hair grafts can survive well using the lateral slit technique.
2 citations
,
December 1994 in “The Journal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism” The treatment effectively reduced hair growth and was safe for patients with PCOS, but it needs better bleeding control.
23 citations
,
July 2007 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair follicle bulge cells don't help skin regrow after glucocorticoid damage; interfollicular epidermis cells do.
December 2021 in “Pathologica” Trichogerminoma is a rare, benign skin tumor from hair cells, with a small risk of becoming cancerous.
56 citations
,
January 1970 in “Cell and Tissue Research”
January 2013 in “Hair transplant forum international” Both surgical hairline advancement and follicular unit transplantation effectively lower the female hairline, but they differ in speed, scarring, and naturalness of results.
October 1995 in “Pediatric Research” 49 citations
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October 1988 in “The Journal of Clinical Endocrinology & Metabolism” Leuprolide effectively reduces hair growth in hirsute women at higher doses.
March 2026 in “PubMed Central” Female pattern hair loss is common in women, treatable with medications, and can affect mental health.
5 citations
,
January 1989 Testosterone and dihydrotestosterone slow hair cell growth, while estradiol has no effect.