How do you get a healthy glow? Some think it comes from 8 hours of sleep, meditation and inner beauty. As for the magazine part, the honest truth is it probably comes from photoshop. While practicing daily habits like getting good sleep, staying active, and eating a healthy diet do aid in your overall health, dull skin tone can often be a result of excess dead skin cells that build up on the surface of the skin. This can make your face feel rough or bumpy, and can also give the skin a dull, lackluster appearance.