I use a sterile saline solution to add a light suggestion of salt to e-liquids. It is only 0.09% sodium chloride; so you are never going to get a salt-lick result. However; it does manage to accomplish giving that "lightly salted" experience.
What I use is something called wound wash (yeah; sounds gross). But, it contains
only sterile water, and sodium chloride... period. No preservatives, or any other stuff that may, or may not be something one would want to vape. You can find a variation of it at nearly any local pharmacy (so no added shipping costs), and a 6 oz. can will last a lifetime.It comes (most often) in a pressurized can, but the output is a gentle stream that is easy to direct into a more user-friendly dispensing bottle.
I use it at 1.5% (or less).
This is an example of the one I bought from Walgreen's:
NeilMed NeilCleanse Wound Wash. The brand is unimportant, And, since my purchase, I have seen several others, including a couple of house label versions.
Note: When I first started looking at pharmacy options, I considered saline nasal sprays, and even saline contact solution as other viable options. A quick read of their ingredient lists, and I realized they all seemed to contain "other stuff," such as preservatives, stabilizers, anti-bacterials, and the like. I settled on the wound wash.
Same for making your own; most table salts are not just pure sodium chloride. They also contain other additives, fillers, and non-caking agents. So, that option was out for me, as well.
