Life Extension Vitamin D3,25 mcg (1000 IU),90 SoftGels (Pack of 3)

Vitamin D has long provided significant support for healthy bone density. However, Vitamin D plays in regulating healthy cell division and differentiation, and its profound effects on human immunity. Vitamin D3 can be synthesized by humans in the skin upon exposure to ultraviolet-B (UVB) radiation from sunlight. But, due to the winter season, weather conditions, and sun block, the body?s ability t