I know wizard labs is not the most popular nic vendor due to their high price, but to me they have some of the cleanest nic with no odor and crystal clear. All of my old stash is from WL. It stayed for over a year in my basement in 2014 before I froze it and it was perfect. But I have new WL (clear), NN (clear), Heartland (haven’t looked yet but it’s in the freezer in original packaging waiting on me to bottle it up), and River. I am going with Heartland or WL for my final purchase, depending on the best sale. Probably Heartland due to price.