Skin shading is primarily caused by UV especially UVA which stimulates melanin production resulting in skin shading, blemishes, and freckles. Sun screen creams or lotions with anti UVA and UVB can help prevent such process. Nutrients such as lycopene which is an antioxidant as well as glutathione, grape seed extract, and French maritime pine extract which can help reduce melanin production can also help keep the skin light and bright.