There are many benefits of using a shower cap. Some of these benefits include keeping your hair dry, preventing frizz, and protecting your hair from the sun.Shower caps are a great way to keep your hair dry while you2019re in the shower. This is important because it helps to prevent frizz and keep your hair looking healthy. Shower caps can also protect your hair from the sun2019s harmful rays. This is important if you have light-colored hair, as the sun can cause it to fade.Shower caps are also a great way to keep your blow dryer from getting wet. This is important because it can help to shorten your drying time and make your hair look shinier.