Isn't it annoying when your sink just won't drain! And it's like it plans to stop functioning right when you need to rush to work or when you're preparing to entertain guests. What are you to do in such a situation? First step, don't panic. Next step, get your can of drain cleaner and let it work its magic. Once the drain is clear, get on with your work. Simple isn't it? It is if you have the best drain cleaner. But do you know which one it is? Well, why don't you read the drain cleaner reviews in this article, try out the one that seems appealing to you and decide for yourself? Here we go. Terracycle Natural Drain Cleaner Here's a drain cleaner that is eco-friendly and devoid of any chemicals. The Terracycle Natural Drain Cleaner is one of the best options if you're looking for something that is not harmful to the pipe, and also a great unclogging agent. All the ingredients used in manufacturing this drain cleaner are perfectly biodegradable. Plus, it comes in a pack that is recyclable too. The only drawback of this drain cleaner is that it takes longer than chemical drain cleaners to unclog the pipe. But it works as efficiently, so give it a try for unclogging a drain and have a clean drain that does not use any harmful chemicals.