I got this yesterday actually for the 3rd time when I'm in a pinch as I couldn't wait for the labor day sales: https://www.amazon.com/Glycerin-Vegetable-USP-Highest-Available-1-Element/dp/B00H4BZM9M - HQ stuff and seems exactly the same as all the vapor suppliers, however Amazon does have some bad VG/PG so you have to be careful.