HALO E-CIG LIQUID IS MY FAVORITE! IT'S 100% AMERICAN MADE (INCLUDING THE ORIGINAL LIQUID). Many "USA Made" providers, actually get the original liquid from China. I like mine Lead-Free; thank you!
HALO offers a wide variety of proprietary flavors and PG/VG mixes (which affects the throat hit & vapor production). All of their liquids are very clean, they are very fairly priced. I order from them regularly, and they have a fast processing time (don't want to be nic-ing out waiting).
They also have a great discount / promo system which is very active and usually is offering some bonus for me. Often either an unexpected discount, or a FREE 10 ML sample of a new flavor to try.
You really need to try HALO Liquid! <removed spammy link>