I have been using Capela flavorings for my DIY juice for years with no problem. I recently decided to make a batch using River Supply flavorings. Every...single... Bottle I made burned and tickled my nose followed by dizziness and temporary lethargy (0mg nic just to note). I checked the flavor descriptions and noticed they have quite a few more added ingedients than most flavor companies. If anyone here has had experience with RiverSupplyCo and or knows what ingredient might be doing this please let me know! It is not PG, VG or nic obviously. I tried to contact them and they were about as helpful as toting water in a wicker basket.