I have been vaping for a few years now, I make my own liquid-for my personal use only because I'm loathe to pay the outrageous prices vape stores have. I buy all my liquids, product replacements, parts, etc; online at websites I've used for years and I love it. Recently I went to buyhangsen.com and was sad to see that they were no longer in business. Where was I going to get my concentrate from now??!! After searching through your forums, I found some great recommendations of other sites. So my original question was answered. Thank you! I will definitely use this site if and when other questions arise.