This, and it basically holds the powder in the solution with a few other chemicals like BA and BB. It really depends how they make it and what the raw material is. Some things don't even need BB.
Some use EO as the main carrier. Some compounds are a little stubborn and need above 20% bb or you can mix in EO with it to help dissolve whatever compound a little better. Or you could avoid it probably all together using migylol or castor
I’m finally getting into brewing and best bet to avoid harsher solvents is migylol or castor. Castor has a little solvent properties. Of course it’s going to be thicker and slower absorption rate
Yes. It's really easy. Just mix together HEET from walmart, crush up 10xb12 tablets then mix those. After its been mixing for 5 minutes or so, filter through a 0.04um filter, take that liquid and combine it with [tracking removed] and boom you have adderall