The extraction I saw included a drying process in a Pyrex dish that allows crystallization so the naptha evaporates. 

I was given a gram of synthetic DMT from a friend coming back from the burn once. Had many beautiful experiences breaking through. When you use it enough to become familiar with the sensation it is not so overwhelming and you can remain aware throughout the experience, This is the best way. I remember being in the woods with some friends in Tahoe and looking at the geometric pattern of how the pine needles stack on top of each other to make a cushion on the forest floor, And the mountains went all oil painting. Surreal.