VZ stands for Vapingzone.com
Be aware, that many of the SC Gourmet line flavors contain diacetyl (and VZ does not disclose this, although the data is easy to find on the 'net or by contacting the vendor in Russia). Because VZ does not disclose that some of their SC Gourmet line flavorings contain this harmful chemical (or in what amounts), we have no way of knowing which/if any of the SC line contains diacetyl (or other harmful chemicals).
Of course, to each his own on the whole "inhalation risk" issue! We all have the right to make our own decisions - but to make those decisions we have to *know* the facts first (and as consumers and end-users, we have the right to know those facts). So methinks we should be diligent in sharing them with newbies.
Hence, although many of the VZ SC & SC Gourmet flavors are good (and easy to mix), I will no longer buy from them or recommend their flavors.