whats it for exactly, Im only asking as Im being sent a sample vial to try. Sorry Im going to sound like the newb that I really am, 2590 u's equates to how many mg's ?
whats it for exactly, Im only asking as Im being sent a sample vial to try. Sorry Im going to sound like the newb that I really am, 2590 u's equates to how many mg's ?
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