think this is as good a place to mention this article and others like it
Vampire SiringThis is just dangerous.
I have had experience of what happens when you remove bits of otherkins essence and the result is generally bad, often leading to mental illness. You also can't replace it with a different type of essence as it will be rejected.
If you put some of your own essence into a humans it would just leave you missing some of yourself and your essence will react against the human essence and expel itself
Taking part of a humans essence away ultimately kills them.
Phoenix are able to fix this kind of loss, in Otherkin, with a special kind of fire but I honestly don't know if it works on humans.
I certainly can't find any references to it working before and as far as I am aware if I were to try and add phoenix fire to a human essence it would simply take hold and burn it away killing the recipient.
All things considered I find the linked article and writer to be incredibly irresponsible.
Zygo