Detailed answer

Dull skin in certain lighting conditions can be caused by several factors. One common reason is the accumulation of dead skin cells on the surface of the skin, which can create a dull and lackluster appearance. Other causes include dehydration, lack of proper exfoliation, and inadequate skincare routine. Additionally, environmental factors like dry air, pollution, and sun damage can contribute to dullness. Lastly, lack of sleep, stress, and an unhealthy diet can also impact the overall radiance of the skin. To combat dullness, it is important to exfoliate regularly, moisturize adequately, protect the skin from sun damage, maintain a healthy lifestyle, and follow a consistent skincare routine that suits your skin type.