I Don't know about the first part:suspect: I think Guaiacol is a better solvent then EO,BA,BB at stopping prop,tne,winny,dbol & mast from crashing at high doses. without it I couldn't get my tne to hold at 100mg/ml but the reason I ask about Guaiacol is because I've never seen anybody go over 12% in their brew & I want to try 20% to see if I can get tne to hold at 200mg/ml