Since the sun is the best source of vitamin D, it seems only natural that vitamin D is best absorbed through the skin.
When we can't get outside or the Vitamin D levels are low in our part of the world, this topical crème is the next best thing!
Tip: You can use the free D Minder app to track optimal timing for getting Vitamin D from the sun in your area. This will also help you to know when you need to supplement with this cream most.