4 citations
,
August 2018 in “Journal of Cosmetic Dermatology” Actual harvested hair follicles were fewer and differed in type from estimated, with older patients and those with multiple transplants needing more careful planning.
September 2025 in “Journal of Cosmetic Dermatology” Rb-bFGF improves hair transplant results and patient satisfaction with fewer complications.
17 citations
,
June 2002 in “Dermatologic Surgery” Chinese patients have fewer hair follicles than Caucasians, and transplanting hair at 40% of normal density works for natural-looking hairlines.
1 citations
,
May 2024 in “Preprints.org” Rex rabbit fur is best harvested at 120 days for optimal hair density and quality.
January 2025 in “BMC Genomics” Key genes and RNA networks regulate hair growth and follicle density in Rex rabbits.
April 2024 in “Frontiers in endocrinology (Lausanne)” Melatonin improved secondary hair growth in goats but didn't affect primary hair density or litter size.
62 citations
,
April 2004 in “Expert Opinion on Pharmacotherapy” Finasteride effectively treats male pattern baldness, improving hair growth and density.
September 1997 in “Journal of the European Academy of Dermatology and Venereology” People with acne have more CD4+ immune cells in their skin than healthy people.
April 2006 in “Current Opinion in Endocrinology & Diabetes” Testosterone therapy can help improve sexual function, mood, and bone density in women with low androgen levels, but more research is needed on long-term safety.
62 citations
,
November 2009 in “Aging Cell” Hedgehog signaling helps keep hair follicle stem cells the same in both young and old human skin.
19 citations
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June 2020 in “Animals” Poor maternal nutrition can lead to fewer wool follicles in Chinese Merino sheep.
September 2023 in “bioRxiv (Cold Spring Harbor Laboratory)” Freezing gamma-irradiated amniotic fluid may help hair growth and speed up the growth phase.
32 citations
,
January 1990 in “Clinical Endocrinology” Women with female pattern hair loss have higher levels of certain androgens, suggesting increased androgen exposure to hair follicles.
1 citations
,
July 2005 in “Drugs and the pharmaceutical sciences” Targeting drugs to hair follicles can treat skin conditions, but reaching deep follicle areas is hard and needs more research.
December 2025 in “Frontiers in Veterinary Science” Key genes like KRT27 and IGF-2 are crucial for hair follicle development in Qianhua Mutton Merino sheep.
117 citations
,
November 2006 in “Experimental Dermatology” The article concludes that the wool follicle is a valuable model for studying tissue interactions and has potential for genetic improvements in wool production.
36 citations
,
March 2011 in “Nature Communications” Cells from a skin condition can create new hair follicles and similar growths in mice, and a specific treatment can reduce these effects.
7 citations
,
October 2018 in “Journal of Craniofacial Surgery” About 21.3% of young, healthy Chinese men experience hair loss. Hairlines are mostly linear or have a central protrusion. Hair is densest on the top and back of the head, and hair follicles usually have 1 or 2 hairs. This information can help in designing hair restoration procedures.
New treatments for hair loss show promise, including plasma, stem cells, and hair-stimulating complexes, but more research is needed to fully understand them.
207 citations
,
March 2012 in “Development” Skin needs dermal β-catenin activity for hair growth and skin cell multiplication.
94 citations
,
September 2014 in “Therapeutic Delivery” Nanoparticles can improve skin treatments by better targeting hair follicles, but more research is needed for advancement.
94 citations
,
May 2011 in “BJCP. British journal of clinical pharmacology/British journal of clinical pharmacology” Hair follicles greatly increase caffeine absorption through the skin shortly after it's applied.
42 citations
,
February 2017 in “Scientific Reports” Researchers found a way to create cells from stem cells that act like human cells important for hair growth and could be used for hair regeneration treatments.
26 citations
,
September 2018 in “Colloids and Surfaces B: Biointerfaces” A new liposome treatment helps heal deep burns on mice by improving hair regrowth and reducing scarring.
24 citations
,
August 2011 in “Experimental Dermatology” The flap assay grows the most natural hair but takes the longest, the chamber assay is hard work but gives dense, normal hair, and the patch assay is quick but creates poorly oriented hair with some issues.
22 citations
,
July 2019 in “PLOS ONE” Skin lymphatic vessels are essential for hair growth.
9 citations
,
July 2011 in “Scientific Reports” Changes in the HR gene have influenced hair growth and may lead to hair loss conditions in humans.
3 citations
,
February 2009 in “Chinese Journal of Traumatology (english Edition)” Human hair cells can be used to grow new hair on rat ears, suggesting a possible treatment for hair loss.
1 citations
,
October 2021 in “Gene, cell and tissue” Grape sap may help reduce hair loss and promote hair growth in rats.
1 citations
,
October 2020 in “Journal of Investigative Dermatology Symposium Proceedings” Platelet-Rich Plasma treatment improved hair growth and reduced inflammation in patients with patchy hair loss, but not in total hair loss, and Optical Coherence Tomography was useful in tracking this progress.