3 citations
,
July 2003 in “PubMed” The research found a way to measure hair surface changes by analyzing how light reflects off of it, and determined hair cuticle angles vary by hair length and color.
January 2020 in “프로그램북(구 초록집)” Low-level light therapy with a helmet device can increase hair density and improve scalp appearance.
September 2012 in “Dermatologic Surgery” Laser and light treatments might help hair growth and transplant success, but the findings could be outdated.
8 citations
,
September 2021 in “Facial plastic surgery & aesthetic medicine” Low-level light/laser therapy is effective in treating male and female pattern hair loss without side effects.
September 2025 in “International Journal of Cosmetic Science” Heat and UV exposure damage hair structure by altering keratins.
Light fraction patchouli oil at 1.5% effectively treats dandruff and promotes hair growth.
September 2024 in “Archives of Dermatological Research” The light-guiding microneedle patch effectively stimulates hair growth in androgenetic alopecia without serious side effects.
February 2023 in “Biophysical Journal” Light can be used to stimulate ear hair cells, improving speed and consistency over previous methods.
73 citations
,
April 1999 in “Dermatologic Clinics” Lasers and light sources can effectively remove hair, work best on fair skin with dark hair, and usually need multiple treatments.
25 citations
,
October 2012 in “Dermatologic clinics” Laser and light treatments can effectively remove hair long-term.
81 citations
,
August 2014 in “Lasers in Surgery and Medicine” Red light therapy is safe and effectively increases hair growth in women with hair loss.
70 citations
,
April 2017 in “Lasers in surgery and medicine” Blue light promotes hair growth by interacting with specific receptors in hair follicles.
46 citations
,
December 2000 in “Seminars in Cutaneous Medicine and Surgery” Laser and light treatments offer quick, long-lasting hair removal for large areas.
45 citations
,
June 2004 in “Lasers in Medical Science” Intense pulsed light (IPL) is an efficient and safe method for hair removal, reducing hair by about 80%.
33 citations
,
January 2017 in “Annals of Dermatology” LED light can help hair growth by activating specific cell pathways.
6 citations
,
January 2021 in “Annals of Dermatology” 650 nm red light helps hair grow and prevents hair loss by affecting certain genes and biological processes.
August 2025 in “Aesthetic Cosmetology and Medicine” Blue light can damage hair and scalp, leading to hair loss.
August 2019 in “Research Square (Research Square)” Red LED light improves the quality of Angora rabbit wool by promoting hair growth.
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.
April 2018 in “The journal of investigative dermatology/Journal of investigative dermatology” Higher fluence in hair removal damages hair follicles more, while lower fluence mimics natural hair regression, with long-term IPL treatments effectively reducing hair.
September 2017 in “Journal of Investigative Dermatology” Blue light helps hair growth by affecting specific proteins in hair follicle cells.
July 2002 in “Dermatologic Surgery” Some people's hair turned white or gray after using intense pulsed light for hair removal, and for some, it was permanent.
23 citations
,
June 2021 in “Lasers in Medical Science” Blue light therapy may help with hair growth, but more research is needed.
20 citations
,
October 2021 in “Applied materials today” A new microneedle patch and yellow light therapy significantly promote hair regrowth.
19 citations
,
February 2018 in “Lasers in Medical Science” Red light and LED treatments help hair grow by activating a specific cell signaling pathway.
15 citations
,
September 2014 in “Dermatologic surgery” Diode laser removes hair better but is more painful than intense pulsed light.
6 citations
,
June 2013 in “British Journal of Dermatology” Intense pulsed light treatment mainly damages pigmented hair parts but spares stem cells, allowing hair to regrow.
5 citations
,
September 2005 in “Dermatologic Surgery” Using a polarized LED magnifier during hair transplants eases recipient site creation and reduces eye strain but doesn't improve graft creation or placement.
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.
1 citations
,
March 2006 in “Dermatologic Surgery” Using a polarized LED magnifier during hair transplants makes creating recipient sites easier and may increase hair density.