Tasty Puff manufactures 3 different liquid products. Tasty Puff Flavor Drops and Sprays are concentrated flavoring. A few drops/pumps can be added to any cigar, pipe tobacco, shisha, water pipe water, etc. It does not contain any nicotine, it is concentrated, unsweetened flavoring only. It can also be added to e-liquid to enhance flavor at about a 10% ratio (3 drops per full tank of e-liquid). It does not vape well by itself and it is too strong to use on its own in this way, but it makes an amazing flavor enhancer for e-cigarettes.