Assay Specifics
Test Model: 3T3 cells seeded in duplicate 96-well plates(light/dark)

Endpoints:
- IC50 (Concentration of test material that causes a 50% decrease in viability, relative to Controls)
- PIF (Photo-Irritation-Factor) - comparison of the IC50 of treated cells in the presence of UVA/Solar Simulated light exposure to the IC50 of treated cells in the absence of UVA exposure.
- MPE (Mean Photo Effect) - comparison of the response curve of treated cells in the presence of UVA/Solar Simulated light exposure to the response curve of treated cells in the dark unirradiated group.