I wouldn't touch essential depot with a 100 foot Ugly stick
Getting the wrong PG is very hazardous health-wise. Read here:
http://www.e-cigarette-forum.com/forum/diy-e-liquid/277267-purity-pg-vg-peg-short-version.html
Go to Wizard or anywhere that specifies USP.
Essential Depot mashes it all together in their description "USP food grade kosher"
That's like saying that the color of something is "Red Yellow Black"
Quoting Rolygate:
"Even Food Grade should not be inhaled, because the digestive system can handle the contaminants in it that the lungs may not be able to. An example of this kind of difference is the flavoring chemical diacetyl, which has a very strong butter popcorn aroma. It is safe for ingestion (eating) as the digestive system can neutralize it; but it can be fatal when inhaled over a period of time as it causes a degenerative lung disease called 'popcorn lung', Bronchiolitis Obliterans."
Stay far away from Essential Depot. They are dishonest. I have had BAD experiences from them.
Notice the big "U.S. Postal Service" logo on the top of their page.
Yeah, they only ship UPS.