In Bigelow v. Virginia 1975 the Supreme Court extended protection to what form of speech?

In Bigelow v. Virginia (1975), the Supreme Court extended First Amendment protection to commercial speech. The case involved a Virginia law that prohibited the advertising of abortion services, which the Court ruled was unconstitutional as it restricted the dissemination of information on a lawful medical procedure. The decision highlighted the importance of free expression in the context of commercial advertising, affirming that such speech is entitled to protection when it conveys truthful information.