One brand, VitaCig, sells five flavors made up of different combinations of vitamins, along with fruit and plant extracts. Their Refresh flavor, for example, contains peppermint and spearmint oils and vitamins A, B1, C, and E. The Energize version mixes those vitamins with grapefruit and orange extracts, and Relax includes blueberry and blackcurrant. Each one only costs $5 and goes for about 500 puffs. Bonus: VitaCig has a recycling program!
If you are already a fan of vaping other things, Vita Vape might be more appealing to you; their vitamin-filled liquids work with other vaporizers, so you don't have to buy a whole new setup. Their flavors might be less enticing, though (come on, cherry croissant?), and they only contain one vitamin each: B12 or C. Yet another company, BLOW, makes vitamin-infused liquid for electronic hookahs that's enhanced with vitamins B12 and C, echinacea, and offers the option of including caffeine and/or nicotine.
Since neither e-cigarettes nor multivitamins are regulated by the FDA in the same way that pharmaceutical drugs are, vitamin vapeing companies can't actually claim you're getting any real health value from the vapor. The idea is that your body will absorb the vitamins in the form of water vapor through mucous membranes in the nose, lungs, and mouth. But, because you lose much of the vapor when you exhale, it's unlikely your body is absorbing as much of the vitamins as it would if you swallowed them in pill form or sprayed them directly into your mouth.
There's already a plethora of insane and parent-worrying vape flavors (black pepper, bacon, or pizza, anyone?), and "vape" recently even made the dictionary. So, the introduction of vitamin vapes was only a matter of time. Still, we're pretty sure the majority of health-conscious folks won't be replacing their daily multi with a stick of vita-vapor anytime soon.