Photostability Testing for Pharmaceuticals: Equipment, Procedures, and Quality Control Pharmaceutical products must retain appropriate quality throughout their intended storage and use conditions. Light exposure is one environmental factor that can affect certain active pharmaceutical ingredients, excipients, formulations, and packaging systems. Depending on the product, exposure may ... https://dantenojzp.blogdal.com/43200373/photo-stability-chamber-working-principles-applications-and-importance-in-quality-testing