March 2023 in “Human Pathology” Hair follicle counts and ratios are helpful in diagnosing hair loss types, but should be used with other specific features for accurate diagnosis.
July 2025 in “Journal of Dermatological Treatment” PRP improves hair growth in androgenic alopecia, especially when combined with minoxidil.
39 citations
,
December 2011 in “PLoS ONE” Radiofrequency exposure can stimulate hair growth by increasing IGF-1 in hair follicle cells.
10 citations
,
January 2014 in “Genetics and Molecular Research” Liaoning Cashmere goat hair follicles show synchronized growth patterns with lowest activity in May.
48 citations
,
July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair growth is controlled by specific gene clusters and proteins, and cysteine affects hair gene expression in sheep.
41 citations
,
May 2001 in “PubMed” Different thicknesses of hair strands can indicate the severity of hair thinning.
15 citations
,
January 1999 in “Reproduction Fertility and Development” Merino sheep have fewer wool follicles at birth than before birth.
4 citations
,
January 2016 in “International journal of reproduction, contraception, obstetrics and gynecology” A certain genetic variation is linked to a higher risk of polycystic ovarian syndrome.
3 citations
,
June 2001 in “International Journal of Cosmetic Surgery and Aesthetic Dermatology” Using both follicular units and slit grafts for hair transplants may give better hair density and graft survival.
November 2023 in “International Journal of Medical Sciences” New regenerative medicine-based therapies for hair loss look promising but need more clinical validation.
25 citations
,
April 2018 in “Electromagnetic biology and medicine” Mobile phone radiation may cause DNA damage in human ear hair follicle cells.
11 citations
,
May 2010 in “Journal of Medicinal Chemistry” A new compound was created in 2010 that can control oil production when applied to the skin, and its effects are completely reversible after two weeks.
1 citations
,
April 2022 in “Revista Da Associacao Medica Brasileira” COVID-19 can cause different types of hair loss, and proper diagnosis by a specialist may be needed.
July 2024 in “International Journal of Molecular Sciences” RF-based therapies might help treat hair loss.
January 2023 in “Journal of applied animal research” Short photoperiods improve cashmere growth and quality in goats by changing hormone levels and gene expression.
August 2019 in “Research Square (Research Square)” Red LED light improves the quality of Angora rabbit wool by promoting hair growth.
August 2024 in “Advanced Healthcare Materials” RK81 can help promote hair growth.
16 citations
,
November 2009 in “Experimental dermatology” Ionizing radiation damages human hair follicles by stopping cell growth, causing cell death, disrupting color, and increasing stress and damage markers.
Higher PD-1 levels mean fewer CD8+ T cells in alopecia areata hair follicles.
April 2023 in “Journal of Investigative Dermatology” Higher PD-1 levels are linked to fewer immune cells in hair follicles in alopecia areata.
27 citations
,
January 2010 in “Animal” South American camelids should be sheared early, fleece type affects fiber quality, and the S/P follicle ratio doesn't distinguish between Bolivian llama genotypes.
25 citations
,
February 2019 in “Genomics” Cashmere and milk goats have different hair growth cycles and gene expressions, which could help improve wool production.
17 citations
,
February 2013 in “PLOS ONE” 6-Gingerol, found in ginger, may slow down hair growth and could be used for hair removal.
10 citations
,
October 2021 in “Animal nutrition” Vitamin B6 helps increase hair growth and density in rabbits by affecting certain cell signaling pathways.
6 citations
,
February 2016 in “American Journal of Dermatopathology” The boy with woolly hair nevus had thinner hair and abnormal hair follicles, which improved with treatment but worsened when treatment stopped.
February 2025 in “Biomolecules” RORA boosts autophagy in hair follicle stem cells, potentially aiding hair growth.
January 2022 in “Food Science and Technology” The herbal mixture could potentially improve hair loss.
November 2025 in “Journal of Clinical Medicine” The drinkable supplement reduced hair shedding and increased hair growth in women.
16 citations
,
March 2015 in “Clinical and experimental dermatology” Mycophenolic acid may help treat hair loss by promoting hair growth and cell proliferation.
Amaranthus extract cream safely boosts hair growth in men with hair loss.