No. Because it’s so highly concentrated, it costs pennies per day. Here are some examples: A 2oz bottle costs $19.95 and purifies up to 25 gallons of water. This comes to less than $0.80 per gallon. If you drink, say, half a gallon of water a day, the cost would be less than $0.40 per day. A 32oz bottle costs $109.95 and purifies up to 400 gallons of water. This would come to $0.28 per gallon. If you drink half a gallon of water a day, the cost would be $0.14 per day. Compare these prices to what it costs to buy a liter (considerably less than a gallon) of bottled water, very often costing from $0.99 to $1.49. Not only do you save a great deal of money, but by using the concentrate, you decrease the waste stream of plastic bottles by reusing just one bottle as many times as you need. So, using Biotite Concentrate saves resources, decreases pollution, keeps landfills from getting clogged with endless numbers of empty plastic bottles and costs remarkably less too. By the way, we recommend using either glass, ceramic or stainless steel for storing/carrying water, not plastic.