What to look for to ensure you buy e juice from a reputable seller -- As the Internet has developed, it has become easier to check a seller's reputation before buying from them.
This can be done with the Better Business Bureau, talking to other consumers that buy e juice and reading reviews. Spend 15 minutes doing this with every new seller you consider, and you will have a much better chance of them being reputable.
Where is their e juice manufactured? -- While some sellers sell top brand e juices, so it is easy to know what the quality will be like, others do not.
Some also make and sell their own e juices, which can make it more complicated again.
Find out when you buy e juice where it is manufactured, and try to go with a supplier that makes their own. These suppliers will usually have a high quality e juice, and will often make it with organic ingredients.
Do they have fair shipping fees? -- You can often tell you are going to buy e juice from an unscrupulous supplier when you look at their shipping fees and realize they are price gouging you.
Look for fair shipping fees, and even for suppliers that will mail your order to your for free if it is more than a certain monetary amount.
Receptive to questions? -- If you find a new seller when you are looking to buy e juice, and contact them with questions, a seller that is receptive and answers quickly is likely to have good customer service as well.