About 90% of all vegetable glycerin is made from coconut oil. There are folks out there who are allergic. At first, one might think it’s the PG you might be sensitive to as your skin breaks out into boils. After all, it’s not unusual to be sensitive to PG. But, as you transition to a Max or 100% VG, you notice the boils don’t go away. There are some companies that make non-coconut-based VG.