October 2013 in “CRC Press eBooks” Low-level light therapy is used in cosmetics and dermatology to repair skin, reduce inflammation, and treat various skin conditions.
May 2023 in “Brazilian Journal of Animal and Environmental Research” Photobiomodulation effectively treats hair loss in dogs with black hair follicular dysplasia.
January 2026 in “Современные проблемы науки и образования (Modern Problems of Science and Education)” 308 nm excimer phototherapy can help some people with alopecia areata regrow hair, especially if their condition is less severe.
33 citations
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January 2021 in “Aesthetic Surgery Journal” Low-Level Light Therapy (LLLT) is a safe and effective method for skin rejuvenation, acne treatment, wound healing, body contouring, and hair growth, but more well-designed trials are needed for confirmation.
1 citations
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July 2024 in “Journal of Investigative Dermatology” VYN201 shows promise as a safe and effective treatment for non-segmental vitiligo.
64 citations
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June 2009 in “Photomedicine and Laser Surgery” Excimer light effectively treats various skin diseases, including psoriasis, vitiligo, and mycosis fungoides.
March 2026 in “Quality in Sport” Red light therapy can boost athletic performance and aid healing.
May 2024 in “Brazilian Journal of Hair Health” Phototherapy with red and blue light can effectively treat hair loss.
105 citations
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December 1995 in “British journal of dermatology/British journal of dermatology, Supplement” PUVA treatment is generally ineffective for alopecia areata.
April 2020 in “The Aesthetics” LED-LLLT helps heal wounds, reduce pain, and regrow hair using specific light wavelengths.
65 citations
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March 2016 in “Lasers in Medical Science” Most low-level light therapy studies did not accurately report how light was measured, affecting treatment reliability.
36 citations
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April 2016 in “Experimental Dermatology” Photobiomodulation may help with hair growth and wound healing, but research is inconsistent and needs better quality studies.
Cryotherapy is the best depigmentation method for vitiligo but needs an expert to perform it.
March 2026 in “Photodermatology Photoimmunology & Photomedicine” Patients with skin immune diseases need better education on UV protection to improve compliance.
31 citations
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January 1981 PUVA-therapy is not very effective for severe hair loss types like alopecia totalis or universalis.
April 2021 in “Journal of Investigative Dermatology” Photobiomodulation therapy may help treat hair loss in people with darker skin, but more research is needed.
Laser therapy is effective for treating vascular lesions with the right light settings and trained professionals.
7 citations
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October 2006 in “Medical hypotheses” UV light might cause excessive hair growth by increasing PGE2 in the skin.
14 citations
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September 2017 in “Clinical and Experimental Dermatology” Systemic photodynamic therapy can effectively treat stubborn folliculitis decalvans with few side effects.
1 citations
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March 2024 in “Brain Imaging and Stimulation” A low-cost, 3D-printed light therapy device is safe and effective but needs more testing before use on people.
54 citations
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November 2014 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” Combining LFQS and IPL is more effective and faster for treating melasma than LFQS alone.
34 citations
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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.
September 2025 in “International Journal of Innovative Technologies in Social Science” Red light therapy may help rejuvenate skin and regrow hair.
7 citations
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September 2004 in “International Journal of Cosmetic Science” Blond hair lightens more with visible light directly, while ultraviolet light lightens it after washing by damaging other hair parts.
November 2022 in “Journal of Investigative Dermatology” The study found that skin inflammation and immune response pathways are activated in Solar Urticaria patients after UV exposure, unlike in healthy people.
January 2026 in “Dermatologic Therapy” Photobiomodulation therapy effectively promotes hair regrowth and improves quality of life in alopecia areata without side effects.
2 citations
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December 2019 in “Electronic Journal of General Medicine” Combining microfocused ultrasound with PRP-therapy improves skin quality and patient satisfaction more than ultrasound alone.
April 2024 in “Al-Azhar International Medical Journal /Al-Azhar International Medical Journal” Combining fractional CO2 laser or microneedling with 5-FU is more effective and safer for treating vitiligo.
62 citations
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July 2018 in “Lasers in Medical Science” LED therapy is safe and shows potential for treating skin conditions and promoting hair growth, but more research is needed.
April 2016 in “Journal of The American Academy of Dermatology” Daylight photodynamic therapy is effective and well-tolerated for treating actinic keratoses with minimal side effects.