I'm trying to put together a kit for my mother, who has to undergo surgery. The surgeon said that he will not perform the surgery on a smoker, and she will be tested for nicotine prior to the procedure. She's been using a cheap analog look-alike to cut back for a while now, but because of this surgery she wants to move up to something with more vapor and flavor, since she's going to be switching to zero nicotine liquid. I'm trying to make it easier on her(and cheaper on shipping) by ordering from one vendor. Madvapes seems to have everything, but I'm concerned about the disclaimer that is listed on the TopVapor eliquid flavors, that it may contain nicotine. Is this just trace amounts due to re-using equipment, or for something different? She doesn't even want any tobacco flavors, so there shouldn't be anything extracted from tobacco. I haven't tried any DIY yet, but it seems like 0 nic liquid should just be PG/VG and flavorings, right?