NEW STUDY: California Flavor Bans Linked To Lower Youth Vaping Without Raising Cigarette Smoking A new study published Friday found that local bans on flavored tobacco products in California were linked to 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 California's flavored tobacco ban won't be blocked by supreme court Is Vaping Banned In California? CASAA Explains the Flavor Ban