441 citations
,
May 1996 in “Journal of Cell Science” Keratin 19 helps identify skin stem cells, with its presence varying by body location, age, and culture stage.
47 citations
,
September 2008 in “British Journal of Dermatology” Ludwig pattern hair loss in women results from varying sensitivity in hair follicles, causing fewer visible hairs.
January 2009 in “The Year book of dermatology” Ludwig pattern hair loss results from varying androgen sensitivity, causing fewer thick hairs and more thin hairs.
29 citations
,
January 2018 in “International Journal of Trichology” PRP treatment helps hair growth and density with 70.7% success, but more research needed.
27 citations
,
June 2019 in “Aesthetic Plastic Surgery” Platelet-Rich Plasma (PRP) treatment may increase hair growth for genetic hair loss, but more research is needed to confirm this.
8 citations
,
January 2020 in “Acta dermato-venereologica” PRP injections did not significantly improve hair growth.
6 citations
,
January 1967 in “Journal of Small Animal Practice” Old dogs' skin thins, loses hair, and may darken, but doesn't show some human aging signs.
2 citations
,
September 2017 in “Plastic and reconstructive surgery. Global open” Nanofat injections can significantly improve hair growth in men with hair loss for up to a year.
April 2023 in “Journal of Shaheed Suhrawardy Medical College” PRP treatment effectively improves hair density and thickness in people with androgenic alopecia.
1 citations
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April 2017 in “Journal of Investigative Dermatology” SM04554 may increase hair growth as a topical treatment for androgenetic alopecia.
January 2024 in “Journal of Cosmetic Dermatology” Microneedling combined with other treatments significantly improves hair growth in people with hair loss and is safe.
Wild African goats have genetic adaptations for surviving harsh desert conditions.
September 2011 in “대한미용학회지” Dansam-Samultang promotes hair growth and prevents hair loss.
November 2025 in “Phytomedicine” Modified Changfa Zirong Powder improves hair growth in androgenetic alopecia.
PRP injections effectively improve hair growth in androgenic alopecia.
January 2023 in “Iranian Journal of Pharmaceutical Research” Stauntonia hexaphylla extract can help treat hair loss by blocking certain hormones.
24 citations
,
February 2007 in “International Journal of Dermatology” A woman with cervical cancer had rare scalp metastasis causing a unique type of hair loss.
8 citations
,
April 2023 in “Advanced materials” Using blood-based implants improves skin healing and reduces scarring.
May 2026 in “Bioactive Materials” The microneedle patch helps regrow hair by restoring enzyme function in hair follicles.
10 citations
,
June 2005 in “Small ruminant research” Melatonin treatment may increase cashmere production in Spanish goats.
33 citations
,
April 2005 in “British Journal of Dermatology” Aging alone barely affects the number of hair follicles, meaning hair loss is minimal without other conditions like androgenetic alopecia.
June 2023 in “International journal of molecular sciences” Heat stress changes goats' skin and hair at the microscopic level and affects their genes and skin bacteria.
63 citations
,
October 2013 in “Dermatologic Surgery” Platelet-Rich Plasma (PRP) increases the number of new hair follicles and speeds up hair formation.
19 citations
,
April 2010 in “Journal of Dermatological Treatment” Partial hair follicle extraction can effectively double the number of hair follicles for transplants, with most surviving and growing normally after a year.
14 citations
,
April 2019 in “Genes” Researchers found a genetic region that influences the number of coat layers in dogs.
May 2018 in “Journal of Investigative Dermatology” Activating Wnt in skin cells controls the number of hair follicles by directing cell movement and fate.
4 citations
,
January 2015 in “Sen'i Gakkaishi” Hair and wool strength is affected by the number and type of bonds in their protein structures, with hair having more protein aggregates than wool.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” T cells with memory features grow in number and gather around hair follicles when there are not enough immune cells.
April 2023 in “Experimental Dermatology” Human dermal papilla cells can increase hair thickness and number in pigs with just one injection.
32 citations
,
December 2013 in “Biological & Pharmaceutical Bulletin” Rice bran extract can potentially treat hair loss by promoting hair growth and increasing the number of hair follicles.