Since listening to UC Davis vit D3 seminars; the videos are on youtube for anyone to see; two years ago I have used vit D3 in up to 50,000iu before going into sun, I believe it works as a sun screen, and it quicken any redness to a tan after excess exposure, I work on rooftops doing A/C work all year around. an average dosage is 10,000iu a day.
Since listening to UC Davis vit D3 seminars; the videos are on youtube for anyone to see; two years ago I have used vit D3 in up to 50,000iu before going into sun, I believe it works as a sun screen,...
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