Showerheads that can be lifted off of the fixture and held usually have two buttons on the side. Press both buttons at the same time and hold them down. Then, lift the showerhead out of the water supply line to remove it. If it isn’t difficult for you to remove the showerhead from your fixture, this is the best way to remove limescale.

If your showerhead is really crusty and dirty, you can simply use undiluted white vinegar instead. [3] X Expert Source Alicia SokolowskiGreen Cleaning Specialist Expert Interview. 15 September 2020.

To keep things simple, do this a few hours before going to bed. That way, you can let the showerhead soak overnight as you’re sleeping.

Do this in your tub so that you don’t have to carry your wet showerhead to the bathroom to reconnect it.

If you simply unscrewed the showerhead, screw it back on the opposite way. If you pressed 2 buttons and lifted the showerhead out, press the 2 buttons again and slide it back in. Use a wrench to tighten any nuts that you loosened to remove the showerhead.

If it’s really difficult for you to remove the showerhead from the fixture, this is the easiest way to remove limescale from your showerhead.

If you’re using a smaller bag, this can be kind of tricky. Stick a funnel inside of a smaller bag to make pouring easier if you want.

Don’t worry if a little vinegar spills out of the bag. It won’t ruin anything in your shower.

Close the shower curtain to keep the floor clean in the off-chance that the bag falls off while you’re letting it soak.

This is the best option if you already tried soaking the showerhead and still have a lot of limescale stuck on the showerhead.

If the toothbrush isn’t getting the job done, try a sponge. If the sponge isn’t working, try using steel wool. If your showerhead is metal though, you may scratch it if you use steel wool.

If you have little rubber gaskets surrounding each nozzle, be careful to not rip them with your toothpicks. This is a really important step if you’ve noticed your showerhead isn’t spraying water evenly.

Run your shower for 2-3 minutes after reconnecting it.