UVB narrow band lamp (NB-UVB) technology comprises a subset of the UVB wideband, or broadband, spectrum centered at roughly 311 nm.  This is less than 1% of total range of wavelengths from sunlight. Skin is most sensitive to erythemic response, (sun burning) at 297 nm, so narrow band phototherapy nearly eliminates sun burning (see chart below). Since the wavelength is shorter, exposure time to narrow band UVB phototherapy treatment lights can be increased.  This provide faster clearing and more complete disease resolution than broadband UVB treatment.   Neither broadband nor NB-UVB require photosensitizing agents.

Indications.  Phototherapy has been shown to be effective in the treatment of numerous skin conditions, including:

• Psoriasis
• Vitiligo
• Eczema
• Lichen Planus
• Pityriasis rosea
• Photodermtoses
• Atopic Dermatitis
• Pityriasis Lichenoides

Phototherapy Products Available with NB-UVB

• Houva III^®
• Houva II^®
• Foldalite 32
• Hand/Foot
• Foot Phototherapy
• Dermalight-80