What is in JNR Vapes? Ingredients & Safety Facts JNR Vape Store Vape Flavors and Vape Juice: What You Need to Know Johns Hopkins Medicine E liquid composition Vaping Post RJ 4 ingredients ng VAPE JUICE para matapos na..for PUBLIC information. FYI. I'm sick and tired of hearing the words "We dont know what chemicals ang nasa vape" or "UNKNOWN CHEMICALS" What's hiding in that vape puff? Vapes might look clean or harmless on the outside, but inside the aerosol is a mix of chemicals and metals created when the liquid is heated.