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GlossaryNarrowband UVB (Narrowband Ultraviolet B)

specific UVB light therapy for treating skin conditions

Narrowband UVB (NB-UVB) refers to a specific type of ultraviolet light therapy that uses a narrow range of UVB wavelengths, typically around 311-313 nanometers. This treatment is commonly used to manage skin conditions such as psoriasis, vitiligo, and certain types of eczema, as it can reduce inflammation and promote repigmentation with fewer side effects compared to broadband UVB therapy.

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research Topical Calcipotriol vs Narrowband Ultraviolet B in Treatment of Alopecia Areata: A Randomized-Controlled Trial

9 citations , June 2019 in “Archives of Dermatological Research”

Both topical calcipotriol and narrowband UVB improved alopecia, but combining them didn't enhance the effect on hair loss severity, despite higher vitamin D3 levels.

Multicenter Prospective Study on the Efficacy of Narrowband Ultraviolet B Treatment and Its Effect on Quality of Life, Anxiety, Depression in Plaque Psoriasis Patients

research Multicenter Prospective Study on the Efficacy of Narrowband Ultraviolet B Treatment and Its Effect on Quality of Life, Anxiety, Depression in Plaque Psoriasis Patients

April 2023 in “Journal of Investigative Dermatology”

Narrowband Ultraviolet B treatment can significantly reduce anxiety in psoriasis patients, but it doesn't significantly affect depression.

research Phototherapy with Topical Minoxidil in Vitiligo: A Randomized Controlled Trial

August 2025 in “Indian Dermatology Online Journal”

Combining minoxidil with phototherapy improves vitiligo treatment better than phototherapy alone.

research Pathophysiology of Vitiligo

72 citations , November 1997 in “Clinics in dermatology”

Vitiligo is a skin condition causing white patches, likely due to an autoimmune issue.

research Narrowband Ultraviolet B Phototherapy for Alopecia Areata

37 citations , November 2011 in “Photodermatology Photoimmunology & Photomedicine”

Narrowband UVB phototherapy alone is not very effective for treating alopecia areata.

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community Rare Non responder to Finasteride, Dutasteride, and oral minoxidil

in Minoxidil 78 upvotes 2 years ago

A user did not respond to finasteride, dutasteride, and oral minoxidil for hair loss after four years of treatment and is considering scalp micropigmentation (SMP). Other users suggest the hair loss pattern may indicate alopecia areata and recommend seeing a dermatologist.

community Red Light Therapy: Cheap Chinese LED caps are better than $3000 laser caps

in Research/Science 37 upvotes 1 year ago

Affordable 92-LED caps may be more effective for hair growth than expensive 270-laser caps due to higher power output and irradiance. The LED caps deliver more energy to the scalp, making them a cost-effective alternative for red light therapy.