Can I use soap to defog a shower mirror?
Some users claim that soaps work as an anti-fog solution. Soaps may keep your mirror from fogging temporarily, but fog will only build up after a few minutes.
You can defog a mirror by warming it or applying an anti-fog treatment on the mirror surface.
Check out Mirrorvana’s brand of shower mirrors which are sustainable and stay 100% fogless in a hot shower. You only need to pour hot water into its built-in water chamber and it will stay fogless for as long as the mirror is warm. We also have shower mirrors treated with anti-fog chemicals that repel fog. You don’t need to use a temporary defogger like soaps, shampoos, toothpaste, and other cleaning agents.