latex condoms are believed to be at least 99% effective. unless you’re in a mutually monogamous relationship with someone known to be hepatitis-free it’s best to use a condom in every sexual encounter. some experts recommend sticking with a plain condom. flavored or scented condoms may be more likely to fail. don’t use an oil-based lubricant as it can degrade latex.
how effective are condoms at stopping sexual transmission of hepatitis?