Purchase whatever lip balm flavors desired. Each vial is enough to flavor at least 50 lip balm tubes or 15 lip slide tins.
All are guaranteed "lip safe" and smell great. These do not add that much taste-wise, but they are added to fool the senses. Adding sweetener completes the effect, but also increases the probably of licking the balm off (and negating the moisturizing effect). Personally, I prefer UNsweetened lip balms, but I offer a sweetener for those that want to try it. I recommend a light hand.