Bellariva Skincare Cream Much decrease been done about melanoma and vitamin D. According to the National Council on Skin Cancer, although sun exposure is related conditions including cause of skin cancer, our bodies still need vitamin D for healthy skin. Entire anti aging skin care system and skin cancer prevention topic is a tough one. As vitamin D nutrients are derived by way of sun, the bottom line is to get sun exposure wisely. Wear a (safe) sunscreen with at least an SPF of 30 and a wide-brimmed hat when working and playing outdoors.