June 2004 in “Dermatologic Surgery” Dr. Walter P. Unger suggests that copying a person's natural hair direction and angle during transplants leads to a more natural and fuller appearance.
July 1998 in “Dermatologic Surgery” Various techniques and tools for hair restoration were presented in 1998, including a mathematical model for donor area, use of lasers in surgery, methods for controlling grafted hair direction, and ways to increase graft yield. Satisfaction rates were around 39%, and studies showed trauma and dehydration can damage hair follicles.
December 2002 in “Operative Techniques in Otolaryngology-head and Neck Surgery” Manage hair loss from trauma with scalp expansion, advancement flaps, and hair transplantation.
24 citations
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January 2006 in “Dermatologic clinics” Hair sunscreens are important for maintaining hair's cosmetic value.
1 citations
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May 2023 in “Frontiers in medicine” Hair dyes and perms can damage hair and scalp, but using interventions can reduce harm.
13 citations
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May 2022 in “Cell discovery” The study found new details about human hair growth and suggests that preventing a specific biological pathway could potentially treat hair graying.
19 citations
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July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” Dermal-epidermal interactions are crucial for hair growth and maintenance.
42 citations
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November 2005 in “The journal of investigative dermatology. Symposium proceedings/The Journal of investigative dermatology symposium proceedings” New hair products are being developed to keep hair and scalp healthy for everyone.
32 citations
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May 2018 in “Cell Cycle” Melatonin helps Cashmere goats grow more hair by affecting certain genes and cell pathways.
31 citations
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October 2017 in “Dermatologic Surgery” Hair transplants look natural, but the best method is debated, and PRP shows promise for hair regrowth.
18 citations
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August 2014 in “Lipids” Human hair has more unsaturated fats inside than on the surface, and certain lipids may help bind the outer and inner layers together.
12 citations
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November 2014 in “PLOS Computational Biology” The study concluded that hair growth in mice is regulated by a stable interaction between skin cell types, and disrupting this can cause hair loss.
7 citations
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December 2020 in “ACS biomaterials science & engineering” Human hair keratins can form stable nanofiber networks that might help in tissue regeneration.
5 citations
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November 2019 in “Dermatology and therapy” Beard hair extraction improves scalp hair restoration results in East Asian men with severe hair loss.
2 citations
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April 2018 in “Journal of Cosmetic Dermatology” Tumescent fluid increases scalp hair angles, which may improve hair transplant results and reduce surgeon fatigue.
November 2025 in “Communications Biology” Human hair contains many different molecules that change along its length, influenced by personal care products.
The polyherbal hair mask is a safe and effective alternative for improving hair health.
42 citations
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July 2015 in “Cosmetics” Nanotechnology improves hair care products by enhancing ingredient stability, targeting treatment, and reducing side effects, but more research on its toxicity is needed.
15 citations
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June 2015 in “Lasers in Medical Science” The 830-nm wavelength was most effective at promoting hair growth in rats using low-level laser therapy.
December 2024 in “Highlights in Science Engineering and Technology” Stem cells show promise for hair regrowth, but challenges remain.
April 2011 in “Global journal of health science” Spironolactone effectively makes hair shafts thinner in women with excessive hair growth.
316 citations
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June 2004 in “The journal of investigative dermatology/Journal of investigative dermatology” Microspheres about 1.5 micrometers in size can best penetrate hair follicles, potentially reaching important stem cells.
92 citations
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September 2019 in “ACS nano” A wearable device using electric stimulation can significantly improve hair growth.
52 citations
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October 2012 in “Journal of Dermatological Science” The document concludes that mouse models are crucial for studying hair biology and that all mutant mice may have hair growth abnormalities that require detailed analysis to identify.
39 citations
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March 2008 in “Growth hormone & IGF research” Raspberry ketone may help grow hair and improve skin elasticity.
36 citations
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December 2016 in “Journal of The American Academy of Dermatology” The normal range for the hair pull test is 2 hairs or fewer, and washing or brushing hair before the test does not affect the results.
22 citations
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October 2019 in “International Journal of Nanomedicine” The nanoparticles improved hair growth and enlarged hair bulbs.
17 citations
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October 2015 in “Medicine and Pharmacy Reports” Animal models are crucial for learning about hair loss and finding treatments.
13 citations
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May 2021 in “Plants” The leaf extract of Leea indica may reduce inflammation, dissolve blood clots, and promote hair growth.
13 citations
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September 2019 in “EBioMedicine” sPLA2-IIA increases growth in hair follicle stem cells and cancer cells, suggesting it could be targeted for hair growth and cancer treatment.