A friend that makes full melt hash tells me when he used terpinator the heads don't melt properly.
This stuff is garbage, I picked up a gallon and gave it a shot, out of all the terpine and resin boosting products I've tried Terpinator was the worst, like ECtraveler commented the only difference in smell or flavor l notived was a artificial sweet taste/smell from the Terpinator, the flowers smelled similar to the smell of the Terpinator. The best as well as easiest and cheapest terpine booster to use was Bud Factor X used as a foliar feed, a couple foliar feeds the last third of flowering is all u need. It will give u a burst of a actual terpines and oils, not just a sugary sweetener like Terpinator is.
It didn't change the odor profile in any of my strains but it did make them smell louder and I mean extra filter loud. I dont follow the label directions I begin using at 10ml starting around 21 days then 15 ml 25-30 days and then 30ml up to flush.