92 citations
,
September 2013 in “Journal of Investigative Dermatology” BMAL1 and Period1 genes can influence human hair growth.
81 citations
,
October 2014 in “The journal of investigative dermatology/Journal of investigative dermatology” Certain genes control the color of human hair by affecting pigment production.
28 citations
,
June 2015 in “Journal of circadian rhythms” An individual's morning or evening preference can predict changes in their body clock gene expression.
1 citations
,
July 2023 in “Journal of Biophotonics” Red light at 8 mW/cm2 most effectively promotes hair cell growth and affects key growth pathways, especially in cells treated with a hair loss-related hormone.
39 citations
,
June 2017 in “Scientific Reports” Different lab conditions and light treatment methods change how human skin cells respond to light therapy.
1 citations
,
August 2010 in “Journal of dermatology” Photoepilation significantly reduces hair, and phototrichograms can objectively measure its effectiveness.
11 citations
,
November 2002 in “Dermatologic Surgery” IPL can cause unexpected hair growth in nearby untreated areas.
September 2017 in “Journal of Investigative Dermatology” Blue light helps hair growth by affecting specific proteins in hair follicle cells.
2 citations
,
December 2024 in “Journal of Photochemistry and Photobiology B Biology” Pulsed wave red LED light is more effective than continuous wave light for promoting hair regrowth.
January 2022 in “Figshare” Melatonin affects when and how goat hair follicle genes turn on and off during growth cycles.
36 citations
,
July 2016 in “Scientific reports” People's decision-making can be influenced by their internal biological clocks, as shown by gene expression, not just self-reported preferences for morning or evening.
34 citations
,
September 2019 in “Clinical, Cosmetic and Investigational Dermatology” Light therapy can stimulate hair growth and is more effective when started early, but more research is needed on its long-term effects and optimal use.
Melatonin shortens the hair growth cycle by increasing PDGFA gene expression.
12 citations
,
January 2019 in “Sleep medicine” Night shift work disrupts the body's natural clock genes.
January 2022 in “Figshare” Melatonin affects when and how goat hair follicle genes turn on and off during growth cycles.
August 2025 in “Systematic Reviews” Photobiomodulation may improve certain health conditions, but more high-quality research is needed.
2 citations
,
March 2019 in “Lasers in surgery and medicine” Higher light doses cause more damage to hair follicles, predicting better hair removal results.
January 2022 in “Figshare” Melatonin affects when and how certain genes work during the growth of goat hair follicles.
January 2022 in “Figshare” Melatonin affects when and how goat hair follicle genes turn on and off during growth cycles.
18 citations
,
January 1994 in “Skin pharmacology and physiology” Sunlight damages hair, causing cuticle loss, protein changes, and discoloration.
January 2022 in “Figshare” Melatonin affects when and how goat hair follicle genes turn on and off during growth cycles.
January 2022 in “Figshare” Melatonin affects when and how certain genes work during the growth of goat hair follicles.
March 1998 in “Journal of dermatological science” Diphencyprone initially increases mouse hair growth, then slows it, possibly due to changes in specific protein levels.
January 2022 in “Figshare” Melatonin affects when and how certain genes work during the growth of goat hair follicles.
49 citations
,
April 2016 in “International journal of molecular sciences” Shift nurses show altered body temperature and stress hormone levels, suggesting their body clocks adjust to irregular schedules.
15 citations
,
June 1986 in “Pediatric Dermatology” Androgens increase pigmentation in young hamsters, but estrogens can reverse this effect.
8 citations
,
April 2016 in “Experimental dermatology” B6.Cg-Tyr c−2J Hr hr /J mice have a stronger delayed sunburn reaction and are good for UV research.
January 2016 in “Xumu Shouyi Xuebao” Delta-opioid receptors affect skin cell circadian rhythms, possibly impacting wound healing and cancer.