Can You Mix Vape Juice? Vapestore Blog Mixing Vape Juice? A Practical Guide to Blending E Liquids E Cigarettes, Vapes, and other Electronic Nicotine Delivery Systems (ENDS) FDA Two of RFK's top brass have resigned this week, both over the approval of two flavored e cigarettes. Both made clear that the approvals go against the FDA's mission to prevent vape companies The FDA doesn't know if flavored vaping chemicals are safe to breathe Salon.com Two of RFK's top brass have resigned this week, both over the approval of two flavored e cigarettes. Both made clear that the approvals go against the FDA's mission to prevent vape companies