ask him if he is making it himself or if he's the middle man for a ugl, i ask this because it is very simple to take anavar powder and mix it with a solvent to make liquid anavar, so he could very well be the one making it
if so, i would be careful that he knows what he's doing or he could screw up the dosages, either way, try to get a pic and post it in the pic section(with the lab name edited out) and we'll see if we recognize it