Vitamin D3 with K2 Vitamin 30 Topical Patches | PatchAidVitamin D is best known for supporting calcium absorption to promote strong bones, but the benefits do not stop there. Unfortunately, about a quarter of adults are at risk for low levels. Vitamin D is called the sunshine vitamin because exposure of your skin to sunlight triggers your body to make the active form, but the name is a little misleading. Unless you live in a latitude below 37 degrees which passes through California, Missouri, and Virginia