The speciality of VK is that the energies travel to different countries, continents, universe so no need of distance of 12-18 inches at all,,,,, to charge EC with VK.
You can even charge when the book is closed with VK on the page.
You can even charge the EC when you are in Delhi and your EC book is in bangalore.
Get the EC in your intention and charge using VK !
So simple it is with VK. Isn’t it 
With or without Serums, VK works wonderfully with GOLDEN SUNRISE energy , experiment it !! 