Figure 1. H(H₂O)_m prevents UV-induced erythema and thymidine dimers in young human skin in vivo.

Skin from young human buttocks was irradiated with UV light and then locally treated with or without H(H₂O)_m for 2 hr. Twenty-four hours after irradiation, erythema index was measured and then skin was biopsied. (A) The photographs of erythema are representative of the subjects. (B) Erythema-index measurements are shown as means ± SEM with scatter plots (n = 11). (C) Immunohistochemical staining was performed using anti-thymidine dimer antibody. The figures shown are representative of seven subjects. (D) Results are expressed as means ± SEM with scatter plots (n = 7), *** p<0.001 versus the control, ^## p<0.01 versus UV-irradiated skin.