Table 3:  Initial NB-UVB treatment times based on skin type1

 

SKIN TYPE

INITIAL TREATMENT TIME

DOSE

Type I

10 seconds

130mJ/cm2

Type II

16 seconds

220 mJ/cm2

Type III

24 seconds

260 mJ/cm2

Type IV

30 seconds

330 mJ/cm2

Type V

36 seconds

350 mJ/cm2

Type VI

44 seconds

400 mJ/cm2

[1] Treatment time and dose calculated for patient standing approximately 6 inches from phototherapy device.

Reprinted with permission from: Nolan BV, Yentzer BA, Feldman SR. A review of home phototherapy for psoriasis. Dermatology Online Journal 2010;16(2):1