Fig 7. Combination vitamins C and E (C&E) were applied to pig skin daily for 1 to 4 days. Skin
was irradiated with solar-simulated UV irradiation 1 to 4 minimal erythema dose (MED) at
1-MED intervals. Results of colorimeter readings of erythema (A) and sunburn cells (B) 1 day
after irradiation. Error bars have been eliminated for clarity. Mean SD (n 3). In comparison
with control P .05 for all observations.