Fig 3. Vehicle, vitamin (Vit) C, Vit E, and combination (Vit
C&E) were applied to pig skin daily for 4 days. Skin was
irradiated with solar-simulated UV irradiation, 1 to 5 minimal
erythema dose (MED) at 1-MED intervals. Erythema
was measured by colorimeter. Mean SD (n 3). *P
.05.