Description
View Full Size× Close 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
$28.00 $21.00
View Full Size× Close 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
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