January 2021 in “Nasza Dermatologia Online” Plica polonica is a rare condition where hair becomes irreversibly tangled, and the treatment is to cut the matted hair.
March 2012 in “Journal of The American Academy of Dermatology” Temporal triangular alopecia usually starts in early childhood and treatment with Minoxidil has limited effectiveness.
April 2020 in “International Journal of Cosmetic Science” The study found that minor protein differences between curved and straight Japanese hair are unlikely to significantly affect hair structure.
8 citations
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January 2015 in “Genetics and molecular research” Researchers found four key proteins that affect the development of a specific hair type in Yangtze River Delta white goats.
October 2023 in “Materials chemistry and physics (Print)” Adding keratin to a mix of cow hair and plant-based plastic makes it stronger.
August 2023 in “Aesthetic Plastic Surgery” Platelet-rich plasma therapy helps increase hair density in male patients with hair loss but doesn't change hair thickness.
1 citations
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July 2024 in “Skin Research and Technology” Patients with androgenetic alopecia have thinner subcutaneous fat layers in their frontal scalp compared to healthy individuals.
5 citations
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October 2020 in “Lasers in Medical Science” Combination therapy works best for female hair loss, increasing density and thickness.
1 citations
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November 2020 in “bioRxiv (Cold Spring Harbor Laboratory)” Quantifying hair shape is better than using racial categories for understanding hair characteristics.
30 citations
,
July 1993 in “Journal of Investigative Dermatology”
June 2023 in “Journal of Pharmaceutical and Health Research” Caffeine hair tonic with 0.001% concentration was more effective in promoting hair growth on guinea pigs.
March 2005 in “International Journal of Cosmetic Science” A new method helps understand hair shine and various products improve hair care.
1 citations
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January 2017 in “Indian Dermatology Online Journal” PRP treatment can improve hair density and thickness in male pattern hair loss, but better preparation methods are needed.
38 citations
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October 1988 in “Clinics in Dermatology” Hormones, nutrition, and seasonal changes regulate hair growth cycles, with androgens extending growth phases and factors like aging and malnutrition affecting hair loss and thinning.
July 2025 in “International Journal of Trichology” Trichoscopy effectively diagnoses temporal triangular alopecia in children.
7 citations
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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.
6 citations
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December 1966 in “Textile Research Journal” Animal hair fibers like wool and mohair are strong when dry, but vicuna fibers are very brittle.
June 2024 in “Skin Research and Technology” Severe male pattern hair loss is linked to lower hair density in the back of the head.
January 1997 in “프로그램북(구 초록집)” Single hair follicle transplantation is best for restoring eyelashes, eyebrows, and pubic hair, with attention to natural hair direction, thickness, and design.
1 citations
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May 2023 in “JAMA dermatology” Tight hairstyles can cause hair loss, which can be permanent if not treated early.
February 2026 in “Journal of Korea Society of Ingrielogy” PDO threads might help with hair loss, but more research is needed.
October 2019 in “Skin appendage disorders” The vitreous membrane in hair follicles changes shape during the hair cycle and may affect hair growth and nutrient exchange.
4 citations
,
August 2018 in “Journal of Cosmetic Dermatology” Wound tension after hair transplant surgery increases with strip size and is higher on the sides, affecting scarring.
11 citations
,
April 2020 in “Life sciences” Pantothenic acid helps mink hair follicles grow by affecting certain cell signals.
27 citations
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September 2017 Pubic hair transplantation can improve self-esteem in those with sparse pubic hair.
June 2024 in “Journal of Cosmetic Dermatology” Hair transplants are better for severe hair loss, while scalp micropigmentation suits those with denser hair.
December 2020 in “Journal of Aesthetic Nursing” Injecting platelet-rich plasma into the scalp stimulates hair growth, increases hair density, and treats hair loss effectively with minimal side effects.
44 citations
,
October 1990 in “Archives of Dermatological Research” The connective tissue around hair follicles changes structure throughout the hair cycle.
51 citations
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November 2010 in “Dermatologic Surgery” The research provides specific measurements for hair follicles that can improve hair transplant and regeneration techniques.
2 citations
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February 2021 in “FEBS open bio” Human hair keratins K85 and K35 create unique filament patterns important for early hair formation.