Vitamin D3, 1,000 IU, 250 softgels - Highest Quality Vitamins And Supplements - Life Extension
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 to produce optimal vitamin D levels may be inhibited. 87...
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