Wood juice is a mix of polymers and paraffins.It will "Wax" impregnate wood turnings,but is not a good choice for handles.Same goes for pentacryl -it does what it is supposed to real good - just not what knife makers need.
To stabilize wood for handles you need to impregnate it with some sort of resin that cures completely.Most all commercial systems use acrylic monomers and polymers and a lot of highly controlled processes.All of which are expensive.It is far better to have the wood done this way than to just fill the wood pores with some sort of self curing resin like poly-urethane,or oils like linseed,tung,danish,etc.
I understand that many makers feel strongly that if they don't do the stabilizing they are not sole authors. Did Shakespeare make his own paper and ink? Did Picasso make his own canvas and paint? Did Bill Moran make his own steel? Extending that to the max,with only a few makers being the exception - Did they didn't cut the tree,or flitch the log,or smelt the steel,or tan their own leather,.........you get where I'm going.
I figure I can do the things I do well with the equipment I have and leave the materials preparation to those who make their living at it.
The authorship is in the art,not the material.
Stacy