Local bans on flavored tobacco products in California are linked to lower youth vaping rates without increasing cigarette smoking, according to a new study published Friday. Details in bio. Federal flavor ban goes into effect Thursday, but many flavored vape products will still be available Ban on flavored tobacco in California goes into effect Wednesday Parents: Teens Are Still Vaping, Despite Flavor Ban. Here's What They're Using Vermont Public US Supreme Court Rejects Challenge to California Flavored Tobacco Ban