Parents: Teens Are Still Vaping, Despite Flavor Ban. Here's What They're Using South Carolina Public Radio Supreme Court upholds California ban on flavored tobacco products San Francisco Flavor Ban Advances DIY OR DIE Vaping Proposition 31 in California brought the "flavor ban" to protect minors from being marketed to and reduce the harm caused by flavor chemicals. Flavored e cigarettes and nicotine pouches are still being acquired Study shows usage is lower in California areas that have a full ban on the sale of flavored tobacco products UC Irvine Wen Public Health