There are plenty of commercial cleaners that promise to remove soap scum from glass shower enclosures.
Shower door soap scum cleaner.
If this test spray works repeat this process on the rest of the shower door to clean all the soap scum off of it.
Re wet your sponge and scoop up the paste.
Clean soap scum with a commercial glass cleaner if you have it.
Rain x holds off water as a result this can reduce the rate at which soap scum builds up on your glass shower doors.
Use a cloth to scrub the surface by hand after about 20 30 minutes and completely dry it.
Most of them do a good job if used weekly or more often.
Spray glass door and close to allow the solution to set and drip back into the shower.
Remove any remaining soap scum from the door by creating a paste of three parts baking soda and one part plain water in a bowl.
Rain x was made to be used on vehicle windows but this can work to help get rid of soap scum on your glass shower doors.
The key is to follow product directions and give the cleaner time to work before wiping or rinsing away.
Soap scum on glass shower walls and doors is an unsightly sight which is why people love this cleaner from rain x made specifically to tackle that job.
Using rain x for this purpose is a cheap way to keep your glass shower doors looking clean.