Though it isn’t a liquid, it works in much the same way as a Drano or Liquid Plumber would to dissolve your toilet clog, but without the dangers and potential for damage.
Instead it comes in pre measured packets of powder. You simply dump it in the toilet, come back in a few hours or overnight and it should be working fine.
Well, it’s actually two steps. After you pour the packet into the bowl you should follow it up with hot water. Not boiling water, though as that could crack your toilet bowl.
It does have sodium bisulfate which is a dry acid so you do have to be careful when handling it.
If you have a stubborn clog that you really don’t want to have to use a toilet auger on or call a plumber, then you will love how easily and effectively this works.
They come in packs of 2 but I recommend getting the box to always have some on hand.