October 2023 in “Biomimetics” The new hair-dyeing shampoo is safe, colors hair evenly, and strengthens it.
30 citations
,
May 2018 in “Experimental Dermatology” The conclusion is that future hair loss treatments should target the root causes of hair thinning, not just promote hair growth.
9 citations
,
September 2022 in “Pharmaceutics” Porcine placenta extract may improve hair growth and skin health.
July 2021 in “Australasian Journal of Dermatology” The trichoscopy-assisted hair pull test is useful for diagnosing different types of hair loss.
1 citations
,
March 1994 in “Proceedings of the British Society of Animal Production” Prolactin and melatonin affect the growth of Angora and Cashmere goat hair differently.
2 citations
,
January 2000 in “Elsevier eBooks” The document explains how hair is studied in forensics to identify its source and its role in criminal investigations.
38 citations
,
May 2009 in “European journal of dermatology/EJD. European journal of dermatology” TrichoScan® is a reliable tool for measuring hair growth, providing quicker and more consistent results than manual methods.
40 citations
,
December 2011 in “British Journal of Dermatology” Women's hair generally gets thinner and less dense starting in their mid-thirties, with hair loss becoming more common as they age due to both genetics and environment.
80 citations
,
June 2008 in “Biomaterials” EVAL membranes help create cell structures that can regrow hair follicles.
26 citations
,
March 1986 in “Clinical and Experimental Dermatology” Scalp hair grows at 0.37 mm/day, forearm hair at 0.18 mm/day, and thigh hair at 0.30 mm/day, with no significant differences found in people with certain hair conditions.
May 2026 in “Dermatology Online Journal” Dermarollers for hair growth show mixed results and can cause risks like damage and infection.
55 citations
,
September 2017 in “Journal of Cosmetic Dermatology” Platelet-rich plasma, taken from a person's own blood, can help rejuvenate skin, stimulate hair growth, and treat hair loss, but more research is needed to confirm its safety and effectiveness.
51 citations
,
September 2020 in “Cell Metabolism” Glutamine metabolism affects hair stem cell maintenance and their ability to change back to stem cells.
20 citations
,
May 2020 in “Experimental Dermatology” Aging scalp skin contributes to hair aging and loss, and more research is needed to develop better hair loss treatments.
15 citations
,
May 2020 in “BMC complementary medicine and therapies” Polygonum multiflorum extract helps hair grow longer and fights the effects of hormones that cause hair loss.
13 citations
,
October 2017 in “Bioscience, Biotechnology, and Biochemistry” Centella asiatica extract may help promote hair growth by blocking a specific cell signaling pathway.
18 citations
,
June 2008 in “Archives of Dermatology” Men typically shed about 10 hairs in 60 seconds, and this amount doesn't increase with age.
March 2026 in “Frontiers in Pharmacology” New treatments for hair loss show promise but need more testing for effectiveness and safety.
January 2019 in “Springer eBooks” PRP may help with hair loss and improve hair quality with few side effects, but more research is needed.
46 citations
,
March 2015 in “Regeneration” Mice can grow new hair follicles after skin wounds through a process not involving existing hair stem cells, but requiring more research to understand fully.
11 citations
,
February 2019 in “Frontiers in Physiology” Hair properties are interconnected; a comprehensive, cross-disciplinary approach is essential for understanding hair behavior.
November 2025 in “Archives of Dermatological Research” Limelight (CB-EVs) safely promotes hair growth.
May 2024 in “Brazilian Journal of Hair Health” Finasteride-loaded nanoparticles were successfully created for potential improved hair growth treatment.
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.
21 citations
,
January 2018 in “The Korean Journal of Physiology and Pharmacology” Modified stem cells from umbilical cord blood can make hair grow faster.
13 citations
,
December 2017 in “BMC Complementary and Alternative Medicine” The Asian herbal mix with Houttuynia cordata, Perilla frutescens, and green tea helped grow hair in mice.
13 citations
,
October 2002 in “Journal of Investigative Dermatology” The upper half of a human hair follicle can grow a new hair in a mouse, but success is rare.
5 citations
,
April 2021 in “Biomedicines” The engineered skin substitute helped grow skin with hair on mice.
Human hair keratins can self-assemble and support cell growth, useful for biomedical applications.
17 citations
,
May 2015 in “Nanomedicine: Nanotechnology, Biology and Medicine” Scientists created tiny particles loaded with a hair growth drug, minoxidil, that specifically target hair follicles and skin cells to potentially improve hair growth.