What is the difference between Propylene Glycol (PG) and Vegetable Glycerin (VG)? Is e-juice/e-liquid safe or harmful? What are allergies and side effects of e-juice/e-liquid? E-cig e-juice also called e-liquid is made with a mixture of propylene glycol (PG), vegetable glycerin (VG), flavoring, and nicotine. Occasionally water or a sweetener is added. The percentage of […]





