Maximum Potency Sundown Naturals When compared to vitamin D2, vitamin D3 is more powerful and bioavailable. Vitamin D3 is a substance that, in conjunction with calcium, helps to maintain strong bones and teeth. Vitamin D3 also aids in the maintenance of a healthy immune system and adds to neuromuscular health, which is the coordination of the neurological and muscular systems.



For adults, take one (1) softgel daily, preferably with a meal.


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