Tutorial: Propylene Glycol (PG) vs. Vegetable Glycerin (VG) E-juice
Overview of Propylene Glycol (PG) vs. Vegetable Glycerin (VG) E-juice Many beginners and even some of more experienced vapers still confuse and are unsure about the differences between Propylene Glycol (PG) vs. Vegetable Glycerin (VG) e-juice. To help you understand...