May 2024 in “International Journal of Cosmetic Science” A new method using near-infrared light can effectively detect and analyze internal hair damage.
130 citations
,
January 1994 in “Differentiation” Mouse hair follicle cells briefly grow during the early hair growth phase, showing that these cells are important for starting the hair cycle.
11 citations
,
May 1998 in “Acta agriculturæ Scandinavica. Section A, Animal science” Blue foxes born later in the season have a slightly delayed fur growth cycle, but it catches up by mid-November.
14 citations
,
January 2018 in “Scientific reports” Bioluminescence imaging can track hair follicle cells and help study hair regrowth.
45 citations
,
May 2019 in “Scientific Reports” Low color temperature light (1900 K) benefits health by promoting melatonin, protecting eyes, and aiding healing.
1 citations
,
January 2021 in “Brazilian Journal of Medical and Biological Research” Constant light exposure during pregnancy changes newborn rabbits' skin, affecting hair follicles, skin thickness, and pigment cells.
September 2023 in “Journal of The American Academy of Dermatology” People were generally happy with the home light therapy devices for hair loss.
11 citations
,
April 2021 in “Advanced synthesis & catalysis” PXX is an effective and affordable photocatalyst for creating new chemical bonds in organic synthesis.
May 2017 in “Journal of The American Academy of Dermatology” LED light helps human hair root cells grow and move by activating certain cell pathways.
80 citations
,
November 2017 in “New Phytologist” Roots adapt to uneven environments by changing growth and gene expression.
3 citations
,
April 2022 in “Dermatologic Surgery” Light therapy with various colors helps treat hair loss.
September 2017 in “Journal of Investigative Dermatology” Photodynamic therapy can potentially remove nonpigmented hair by damaging hair follicles.
October 1995 in “Pediatric Research”
57 citations
,
February 1994 in “Experimental dermatology” Melatonin affects mouse skin and may regulate skin functions.
65 citations
,
March 2016 in “Lasers in Medical Science” Most low-level light therapy studies did not accurately report how light was measured, affecting treatment reliability.
47 citations
,
May 2012 in “Wiley Interdisciplinary Reviews-Developmental Biology” The conclusion is that understanding how feathers and hairs pattern can help in developing hair regeneration treatments.
1 citations
,
July 2025 in “Journal of Photochemistry and Photobiology B Biology” Photobiomodulation helps protect hair follicle cells from damage caused by DHT.
April 2018 in “Journal of Investigative Dermatology” The research found that a specific skin cell type not only triggers hair growth but also controls hair color, and that aging can lead to hair loss and color changes.
25 citations
,
June 2003 in “Journal of Investigative Dermatology Symposium Proceedings” Phototrichogram and hair diameter measurements are effective, noninvasive ways to assess hair growth and detect early hair loss, with the most common pattern being reduced hair density.
February 2024 in “Neurophotonics” Light therapy on the brain shows promise for treating brain diseases and improving brain function.
4 citations
,
July 2021 in “bioRxiv (Cold Spring Harbor Laboratory)” BLMP-1 is important for regular molting and gene expression cycles in worms.
September 2025 in “Lasers in Medical Science”
July 2023 in “Journal of lasers in medical sciences” Red laser therapy helped regrow hair in an alopecia areata patient within 21 days.
July 2023 in “Photobiomodulation, photomedicine, and laser surgery” Photobiomodulation increased hair count in men with hair loss after 5 weeks, with no further increase after 10 weeks.
10 citations
,
January 2014 in “Genetics and Molecular Research” Liaoning Cashmere goat hair follicles show synchronized growth patterns with lowest activity in May.
February 2024 in “Institutional Repository of the Federal Technological University of Paraná (RIUT) (Federal University of Technology – Paraná)” Photobiomodulation can influence gene and protein expression related to healing and inflammation.
February 2024 in “Animals” Hair loss peaks in spring and regrowth in late summer, with pregnant females losing the most hair.
221 citations
,
July 2012 in “Proceedings of the National Academy of Sciences of the United States of America” BMAL1 controls skin cell growth and UV damage risk, peaking at night.
127 citations
,
December 2007 in “Journal of Investigative Dermatology” Mice hair growth patterns get more complex with age and can change with events like pregnancy or injury.
February 2022 in “Veterinary record case reports” Light therapy successfully treated a dog's hair growth problem without side effects.