Clinical studies show the peak therapeutic effectiveness of uvb to be within the range of 295 313 nm but wavelengths below 300 nm can cause redness or severe.
Nb uvb lamp for vitiligo.
We make use of nb uvb 311nm 312nm light to treat vitiligo and promote the local melancytes growing.
Nb uvb will produce many kinds of cytokines including il 1 leukotrienes and tumor necrosis factors which stimulate the no pigment melanin cell proliferation produce the melanin and migrate to the depigmentation part.
Vitiligo is an acquired disorder of skin pigmentation that produces significant psychological impact especially in those with skin of color.
Narrowband uv b nb uvb is widely used and has become the first choice of phototherapy for adults and children with generalized vitiligo.
What is the nb uvb therapy.
Narrowband ultraviolet b nb uvb treatment is the most common form of phototherapy treatment for people with vitiligo.
Administered by a dermatologist or with a light therapy unit used at home regular uvb treatment may increase the number of melanocytes the skin cells that produce pigmentation.
Photodermatol photoimmunol photomed 22 157 jun 2006.
Over many treatment sessions patients see reduction or complete elimination of vitiligo patches.
Narrow band ultraviolet b nb uvb therapy which was first used in vitiligo in 1997 by westerhof and nieuweboer krobotova has emerged as one of the safest and most effective therapy for this dermatosis.