43 citations
,
September 2017 in “Lasers in Surgery and Medicine” LED light therapy may help hair growth by activating certain cell pathways.
Melatonin and photobiomodulation are effective for treating Alopecia X in German Spitz dogs.
20 citations
,
January 1979 in “Journal of Experimental Zoology” Plucking hair speeds up the next hair growth, but hormones can change this timing.
17 citations
,
August 1971 in “Journal of Investigative Dermatology”
November 2023 in “Journal of Cosmetic and Laser Therapy” Most alopecia patients are open to trying light therapy, especially at-home devices, but cost is a big factor in their willingness.
12 citations
,
January 2019 in “Sleep medicine” Night shift work disrupts the body's natural clock genes.
56 citations
,
March 2017 in “Plant and Cell Physiology” Light sheet fluorescence microscopy effectively measures calcium changes in Arabidopsis root hairs.
28 citations
,
October 1987 in “PubMed” Lithium temporarily stops cell division in plant cells, but this can be reversed with certain chemicals.
7 citations
,
January 2003 in “Journal of cosmetic and laser therapy” The filterless flashlamp-based system effectively delays hair regrowth and improves skin condition.
2 citations
,
February 2025 in “Journal of Investigative Dermatology”
10 citations
,
January 2014 in “Genetics and Molecular Research” Liaoning Cashmere goat hair follicles show synchronized growth patterns with lowest activity in May.
9 citations
,
February 2022 in “BMC Genomics” Melatonin affects gene expression in goat hair follicles, potentially increasing cashmere production.
October 1995 in “Pediatric Research”
July 2023 in “Biomolecules” The circadian clock plays a key role in hair growth and its disruption can affect hair regeneration.
June 2020 in “Journal of Investigative Dermatology” More research with diverse participants is needed to determine the effectiveness of photobiomodulation devices for hair loss treatment.
Photobiomodulation effectively improves skin and hair conditions with minimal side effects.
19 citations
,
April 2020 in “Psychological Medicine” The study found three different timing patterns of symptoms in women with premenstrual dysphoric disorder.
April 2018 in “The journal of investigative dermatology/Journal of investigative dermatology” Blue light can help hair grow by affecting certain receptors in hair follicles.
116 citations
,
May 2013 in “Proceedings of the National Academy of Sciences of the United States of America” Hair grows faster in the morning and is more vulnerable to damage from radiation due to the internal clock in hair follicle cells.
82 citations
,
September 2011 in “Quality of Life Research” Choosing the right recall period for patient feedback is important for accurate data and depends on the disease, symptom changes, and patient impact.
1 citations
,
September 2024 in “iScience” Disrupted sleep patterns from artificial light can slow hair growth and may lead to hair loss.
September 2025 in “Lasers in Medical Science”
September 2025 in “bioRxiv (Cold Spring Harbor Laboratory)” Non-invasive methods can effectively monitor hair growth cycles, aiding hair loss treatment development.
January 2017 in “Nihon Keshouhin Gijutsushakaishi/Journal of S C C./Nihon Keshouhin Gijutsushakai kaishi” Sunlight and chemical treatments change hair's internal structure differently, needing specific care.
166 citations
,
August 2010 in “Proceedings of the National Academy of Sciences of the United States of America” Scientists found a new, less invasive way to study body clocks using hair cells, which shows shift workers' body clocks don't match their lifestyles.
45 citations
,
May 2019 in “Scientific Reports” Low color temperature light (1900 K) benefits health by promoting melatonin, protecting eyes, and aiding healing.
35 citations
,
December 2014 in “Lasers in surgery and medicine” Red light promotes hair growth by directly stimulating hair cells and improving cell communication.
7 citations
,
September 2019 in “DOAJ (DOAJ: Directory of Open Access Journals)” Photobiomodulation can help regrow hair in certain types of hair loss.
1 citations
,
January 2008 in “Laser therapy” Endré Mester is highly regarded as the 'Godfather' of phototherapy.