PGA is pure grain alcohol , and no you can't get it at the grocery store . You can however buy straight VG from any Walmart and other places as well . It's real cheap and it's a little sweet , but also kinda thick . If your adding it to some PG juice , your probably fine , if to a VG juice , you may have to thin it down a little , with distilled water , PGA , or even vodaka , only do a little at a time , so you don't make your juice too thin .