Westeffer...my understanding is Sunpill takes 20 minutes to work. It wont stop vitamin D production but wil halt UVA & UVB rays. Stop damage to the dermal layer of the skin thus still allowing the body to make free radicals. Sheff
Message In Reply To: Sheff, I ask that question simply because it is well known that sunscreens totally block the production of Vitamin D.
It is obvious those blockers act on the same UVB rays in order to prevent damage and or cancer.
Seems logical to assume the same result, but maybe not.
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