I need to take liquids so discovered this blend of black elderberry, vitamin C, vitamin D3 and other supplements! I take .5 ml twice a day which gives me 500 mg. of vitamin C at a time. My understanding is our bodies can't absorb more than about 500 mg at a time so I take 'a half dose, a half capful' twice a day with other supplements!
I have reordered this before because no other offering has a synergistic blend like this in a LARGER bottle, which saves me money also.
I take other liquid minerals from Trace Minerals found at Swanson also.