Bought the sampler 6 pack bc I didn't know which to go to as a lubricant. This makes it so I can try different ones and pick my gf and my favortie one. We tend to go on for a while so having lub is a must, so we do go thru a bit. Still trying everything and so far so good. I will say that, personally, water based is best for those ladies and gents that do not want anything inorganic to stay inside for an extended period of time.