Understanding Vape Juice: Ingredients, Varieties, and Safety General Vape DIY PGVG base It's NOT just water vapor. Vaping exposes your lungs to harmful chemicals and can affect your overall health. This Vaping Awareness Month, get the facts and free support to quit. Text READY Propylenglykol Vape 70 30 VG PG Blend Vegetable Glycerin & Propylene Glycol USP Kosher Food Grade Liquid Bulk What Are the Ingredients in Vape Juice? Do you know what you're vaping? Propylene glycol (PG) and vegetable glycerin (VG) are the main liquids in vapes. When heated, these chemicals turn toxic and aren't safe to breathe.