117 citations
,
September 2013 in “Lasers in Surgery and Medicine” Red light therapy at 655 nm significantly improved hair growth in men with hair loss.
39 citations
,
October 2013 in “Plastic and Reconstructive Surgery” Human alpha defensin 5 helps heal wounds, reduce bacteria, and grow hair on burned skin.
36 citations
,
January 1998 in “Journal of Dermatological Treatment” The questionnaire effectively measures men's perceived hair growth and can distinguish between different treatments and dosages.
20 citations
,
January 2014 in “Journal of Cosmetics, Dermatological Sciences and Applications” Using adipose derived stem cells and growth factors in hair transplants may improve healing and hair growth.
17 citations
,
May 1995 in “Anatomy and Embryology” Injecting 6-OHDA in newborn mice delays hair growth and thins skin.
15 citations
,
February 2014 in “BMC Research Notes” The X5 Hairlaser might help treat male hair loss, but more research is needed.
15 citations
,
May 2019 in “PLOS ONE” Substances from dental stem cells might help treat hair loss.
1 citations
,
January 2021 in “Skin appendage disorders” A woman with alopecia regrew her hair after taking a higher dose of tocilizumab.
September 2025 in “Polymer Korea” Parsley-coconut oil nanoemulsion effectively promotes hair growth.
December 2023 in “International Journal of Biological Macromolecules” Chitosan nanoparticles loaded with Minoxidil were effective for hair growth but released the drug more slowly than the amphiphilic derivative.
November 2022 in “Journal of Investigative Dermatology” The extract of Silybum marianum, Manganese PCA, and Lespedeza capitata can boost hair growth and extend the growth phase when combined in a serum.
42 citations
,
June 2019 in “Aging” 3,4,5-tri-O-caffeoylquinic acid promotes hair growth by activating the β-catenin pathway.
21 citations
,
October 2011 in “British Journal of Dermatology” Testosterone therapy helped 63% of androgen-deficient women grow scalp hair, but more research is needed.
19 citations
,
May 2020 in “Cells” Substance from human umbilical cord blood cells promotes hair growth.
July 2025 in “International Journal of Trichology” Biological factors are crucial for developing new hair restoration treatments.
63 citations
,
May 2020 in “Advanced Healthcare Materials” The new wound dressing helps skin heal completely, including blood vessels and hair growth.
1 citations
,
September 2015 Gefitinib treatment led to unexpected hair growth in two lung cancer patients.
February 2023 in “JAAD Case Reports” Scalp tattooing may trigger hair regrowth in alopecia universalis.
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.
5 citations
,
June 2024 in “Developmental Cell” Activating TRPV1 can boost hair growth by involving neurons, macrophages, and fibroblasts.
112 citations
,
February 2001 in “Journal of Investigative Dermatology” Neuropeptides affect hair growth, with some speeding it up and others slowing it down.
31 citations
,
January 2021 in “Plants” Light, sugar, and auxin together influence root and root hair growth in plants.
27 citations
,
August 2018 in “Frontiers in Plant Science” High levels of auxin increase root hair growth by activating RSL2 and producing ROS, while high phosphate levels hinder growth by repressing RSL2.
Iron influences root hair growth during phosphate starvation by affecting auxin distribution and vesicle trafficking.
March 2026 in “Biomolecules” MicroRNAs play a key role in controlling hair growth and quality in sheep and goats.
January 2018 in “bioRxiv (Cold Spring Harbor Laboratory)” Auxin helps root hairs grow in high phosphate by affecting ROS and involving RSL2 and RSL4.
190 citations
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October 2002 in “The FASEB journal” Androgens may cause hair loss by increasing TGF-beta1 from scalp cells, which inhibits hair cell growth.
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.
2 citations
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June 2021 in “Notulae Botanicae Horti Agrobotanici Cluj-Napoca” More research is needed to understand how nutrients affect root hair growth.
December 2025 in “International Journal of Molecular Sciences” Opophytum forskahlii seed oil may help with anti-aging and hair growth.