Irritant Contact Dermatitis Risk of Common Topical Traditional Chinese Medicines Used for Skin-Lightening: A Pilot Clinical Trial with 30 Volunteers
Figure 1
Patch and photopatch testing on an unaffected area of the upper back. (a) Each reagent placed within 8 mm Finn Chambers on Scanpor tape was then fixed with Scanpor tape and secured with 3M tape. (b) Each reagent was applied in duplicate to the left and right side of the upper back of each subject. (c) Photopatch tests were applied on the right side of the backs of subjects who were irradiated with 5 J/cm2 UVA on Day 1.
