Switch to body wash instead of bar soap in the shower. Soap scum is caused by the organic animal fat contained in bar soap. If you don’t like using synthetic body wash, you can also opt to use fat-free soap and shampoo instead of ordinary bar soap. You can buy body wash at any store that also sells bar soap. To buy fat-free bar soap, you may need to go to a health and beauty shop or a cosmetics store.
Dry the door with a squeegee after every shower you take. Keeping your shower door dry whenever you’re not actually in the shower is a great way to prevent the buildup of soap scum as well as mold. If you don’t have a squeegee, you can also use a clean towel to keep your door dry. Squeegees tend to be pretty cost-effective and you can usually buy them in the cleaning section of most grocery stores and mass retailers.
This may seem like a chore to do in the short term, but it’s much easier to squeegee your shower door after you shower than it is to clean off soap scum that’s been building up for a long time. You should also open your bathroom windows or leave the fan running for at least 30 minutes after every shower. This will help dry out the bathroom and prevent the growth of mold and mildew.
Apply baby oil or white vinegar to the shower door. Put some baby oil or vinegar on a scouring brush, then scrub the oil or vinegar onto the entire surface of the door. Finally, rinse off the door with warm water. Repeat this process once a week to keep your shower door scum-free.
The chemical compositions of baby oil and white vinegar both work to repel soap scum, making it much less likely to accumulate on your shower door. Be sure to rinse the door really well if you use baby oil, since it may cling a bit to the door. You can also use commercial glass-cleaning products, such as Rain-X, to prevent buildup.