From my understating, ECF does not approve of these "Health Liquids".
Thats correct. Though a little B12 or Ginseng isnt what they are concerned about really.
I think....is it's a cool idea.
And I played around with it in my DIY but you cant get the mg of vitamins high enough(to meet daily intake in 3ml's), without the liquid tasting so horrible it's not vapeable. Even in the strongest flavored juices, using the highest concentration of vitamin/herbal glycogen/extract I could find.
Your really better off popping a good multi vitamin in the morning(after coffee and a vape of course).