Harmony Spent months researching and developing their Live Sauce formulation to ensure a stable product that is flavorful, potent and the closest thing to a dab on-the-go. This very terpy oil is used in the 5:10 thread cartridge. The Harmony Vapor Pen line is your best option for 500mg of pure high-terpene extract. No cutting agents. No fillers. Just the pure highest quality Harmony products on-the-go.