120 citations
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November 2014 in “Biological Reviews” The telogen phase of hair growth is active and important for preparing hair follicles for regeneration, not just a resting stage.
132 citations
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September 2009 in “Experimental Dermatology” A reliable system was developed to distinguish hair growth stages, aiding in identifying hair growth promoters or inhibitors.
January 2026 in “Dermatologic Therapy” Photobiomodulation therapy effectively promotes hair regrowth and improves quality of life in alopecia areata without side effects.
53 citations
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January 2009 in “Journal of Investigative Dermatology” UVB radiation harms hair growth and health, causing cell death and other changes in human hair follicles.
31 citations
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January 2021 in “Plants” Light, sugar, and auxin together influence root and root hair growth in plants.
January 2018 in “bioRxiv (Cold Spring Harbor Laboratory)” Auxin helps root hairs grow in high phosphate by affecting ROS and involving RSL2 and RSL4.
August 2025 in “Aesthetic Cosmetology and Medicine” Blue light can damage hair and scalp, leading to hair loss.
Red light exposure slows aging in mice by improving fat metabolism.
31 citations
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September 2016 in “PLoS ONE” Cell division orientation varies by body site and is linked to epidermal thickness and cell density.
2 citations
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March 2025 in “Archives of Dermatological Research” HEV light can harm or help skin and scalp, so safe exposure guidelines are needed.
Hair properties change under electromagnetic fields and are influenced by individual characteristics and the environment.
September 1998 in “Journal of The European Academy of Dermatology and Venereology” Phototrichogram helps assess hair loss severity.
February 2025 in “Journal of Biophotonics” Dual-wavelength laser therapy promotes better hair regrowth than single-wavelength treatments.
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January 1971 in “Archives of Dermatological Research”
October 2024 in “Photodermatology Photoimmunology & Photomedicine” Red LED therapy is more effective than green LED for improving hair growth in androgenetic alopecia.
October 2025 in “Molecular Genetics and Genomics” 24 citations
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May 2017 in “Annals of botany” Pathogenic Pseudomonas syringae bacteria stimulate early root hair growth in Arabidopsis plants.
December 2024 in “Journal of Biophotonics” Dual wavelength LEDs may help reduce hair loss by lowering DHT levels.
November 2013 in “Institutional Repositories DataBase (IRDB)” Gamma-ray exposure during hair rest phase harms hair growth and color in mice.
March 2007 in “International Journal of Cosmetic Science” Hair with more melanin resists weather damage better.
21 citations
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January 2019 in “Experimental dermatology” Light therapy using helium-neon lasers can help restore skin color in vitiligo by promoting skin cell growth and movement.
6 citations
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November 2013 in “International Journal of Radiation Biology” Gamma-rays exposure during the resting phase of hair growth can damage hair regeneration and color in mice.
February 2025 in “Plastic and Aesthetic Research” Minoxidil and finasteride effectively promote hair regrowth within 3 months.
March 2024 in “Antioxidants” Excessive blue light harms eye cells and disrupts sleep patterns.
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April 2018 in “Cosmetics” As people get older, they have less active hair growth, but women have thicker hair than men and respond better to hair loss treatments.
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October 2010 in “Journal of dermatological treatment” External treatments can change hair growth patterns in nude mice.
95 citations
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July 2006 in “British Journal of Dermatology” Vitamin D receptors in hair follicles change with the hair cycle, affecting hair growth.
11 citations
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April 2013 in “Homo” Darker skin in 10-year-old girls may be an early sign of puberty.
February 1990 in “PubMed” Higher DHEA-S levels in hirsute females affect hair growth phases.
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March 2017 in “Dermatologic clinics” UV light can help stimulate the growth of new pigment cells from hair follicles in people with vitiligo.