Each puff of a vape delivers harmful chemicals to your body, affecting major organs without you realizing. Be informed, take care. What are your thoughts on this pervasive issue? #HealthMatters #VapingAwareness # Do Vapes Have Sugar? The Truth About Sweeteners and Vaping Researchers at the University of California, Riverside, found that heating propylene glycol, the main ingredient in most e cigarette liquids, can produce two toxic chemicals, methylglyoxal and acetaldehyde, which damage lung cells. Using Propylene Glycol E Liquid Flavour Concentrates UK