Vitamin D Self-Test kits

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The first Vitamin D self-test offers rapid on-site self-testing for detecting low vitamin D levels in under 10 minutes. A complete home test kit allows a finger prick sample to be tested at home.

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i THINK AN EXPLANATION IS NOT ENOUGH. yOU SHOULD HAVE DEMONSTRATED IT HOW TO DO IT. i AM GIVING YOU A LIKE ANYWAY

alpro
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The presenter failed to say what is indicated when a red line appears at the top of the window and NO red line appears in the lower (T) window.

returnearthvideochannel
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I have just used this product and it is not very easy to distinguish between the two shades of the lines
Considering that it is supposed to be the difference between being sufficient or deficient in vitamin d
Read the reviews on Amazon before deciding

JohnSmith
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Can’t you just show how it’s done. Deeds not words. Duh.

idrisolanrewaju