Some of the most famous false advertising cases in U.S. history have cost brands from tens of millions to well over ten billion dollars. Volkswagen’s diesel emissions deception led to a settlement package valued at up to $14.7 billion for its 2.0-liter vehicles alone. Dannon paid roughly $66 million across a class action and an FTC action over Activia yogurt’s digestion and immunity claims. Skechers paid $40 million over its Shape-ups toning shoes. Red Bull paid $13 million over promises that the drink sharpened focus and reaction time. Lumosity faced a $50 million judgment over brain-training claims. The cases below show what triggered the enforcement, what the companies paid, and how the rules apply.
Food and Beverage Claims That Backfired
Red Bull’s “gives you wings” slogan wasn’t the real problem. The lawsuit that produced the $13 million class-action settlement targeted ads suggesting the drink boosted concentration and reaction speed beyond what a cup of coffee could do. Anyone who had bought a Red Bull product over the prior decade could file for a $10 cash payment or $15 in free product. The company admitted no wrongdoing, but the settlement signaled that functional performance claims need evidence behind them.
Dannon marketed Activia yogurt and DanActive dairy drinks as “clinically proven” to improve digestion and boost immunity, and priced the products roughly 30 percent above competing brands on the strength of those claims. A federal class action required Dannon to pay up to $45 million to consumers. The FTC, working with 39 state attorneys general, reached a separate $21 million settlement and barred the company from repeating those health claims without reliable scientific evidence.1Federal Trade Commission. FTC Challenges Dannon’s Claims for Activia Yogurt and DanActive
POM Wonderful pushed further, running ads that suggested its pomegranate juice could treat or prevent heart disease, prostate cancer, and erectile dysfunction. The FTC issued an administrative complaint, and the case moved through the federal courts until the Supreme Court declined to hear POM’s appeal in 2016, leaving the FTC’s findings in place.2Federal Trade Commission. POM Wonderful LLC, et al. The takeaway for food companies: disease-related health claims require randomized, controlled clinical trials, not general nutritional research.
Health and Wellness Products
Listerine produced the most influential remedy in the history of false advertising law. Warner-Lambert had marketed the mouthwash for decades as a product that could prevent or cure the common cold and sore throats. The FTC found the claims lacked clinical support, and the federal appeals court agreed. Because the campaign had run so long, the court ruled that a stop order alone would leave the false impression intact. Warner-Lambert had to spend $10 million on corrective advertising carrying the line: “Contrary to prior advertising, Listerine will not help prevent colds or sore throats or lessen their severity.”3Justia. Warner-Lambert Company v. Federal Trade Commission
Airborne sold effervescent tablets as a way to fight germs and ward off colds and flu, pointing to a clinical study that turned out to have been conducted without proper controls. A class-action settlement of up to $23.3 million followed, and the FTC’s separate action brought total settlement funds to $30 million.4Federal Trade Commission. Makers of Airborne Settle FTC Charges of Deceptive Advertising Consumers could claim refunds for multiple packages without producing receipts.
Lumosity marketed its brain-training app as a way to sharpen memory, improve attention, and reduce age-related cognitive decline. The FTC found that Lumos Labs had no competent scientific evidence for those claims. The settlement imposed a $50 million judgment, reduced to $2 million in actual payment based on the company’s financial condition, and required the company to notify auto-renewal subscribers and give them an easy way to cancel.5Federal Trade Commission. Lumosity to Pay $2 Million to Settle FTC Deceptive Advertising Charges for Its Brain Training Program
Weight Loss and Toning Products
The FTC treats weight loss claims as a category where certain promises are inherently deceptive. Any ad promising two or more pounds of weight loss per week for a month or more without diet or exercise, permanent weight loss after you stop using the product, or substantial weight loss regardless of what you eat draws regulatory attention almost automatically.6Federal Trade Commission. Gut Check: A Reference Guide for Media on Spotting False Weight Loss Claims
Skechers ran into that scrutiny with Shape-ups. The company claimed the shoes would help wearers lose weight, tone muscles, and improve cardiovascular health simply by walking, and some ads cited specific muscle-activation percentages. Skechers agreed to a $40 million settlement to refund consumers.7Federal Trade Commission. Skechers Will Pay $40 Million to Settle FTC Charges That It Deceived Consumers With Ads for Toning Shoes New Balance faced a parallel class action over its own toning shoe line and settled for $2.3 million, with individual refunds of up to $100 per pair purchased.
Automotive Cases
Volkswagen’s diesel emissions scandal remains the single most expensive false advertising case on record. The company installed software in millions of diesel vehicles that detected emissions tests and activated full pollution controls only during testing. On the road, the vehicles emitted nitrogen oxide pollutants at up to 40 times the legal limit. The engineering was deliberate.
Volkswagen estimated the cost of buying back or modifying the affected 2.0-liter vehicles alone at over $10 billion. The company also paid a $1.45 billion civil penalty for Clean Air Act violations, funded a $2.7 billion environmental mitigation trust, and committed $2 billion to zero-emission vehicle infrastructure.8United States Environmental Protection Agency. Volkswagen Clean Air Act Civil Settlement The Department of Justice put the combined settlement value for the 2.0-liter vehicles at up to $14.7 billion.9United States Department of Justice. Volkswagen to Spend Up to $14.7 Billion to Settle Allegations of Cheating Emissions Tests and Deceiving Customers In 2025, a German court convicted four former Volkswagen managers of fraud, with sentences ranging from suspended terms to four and a half years in prison.
Hyundai and Kia overstated fuel economy ratings on close to 1.2 million vehicles, inflating advertised miles per gallon by one to six MPG depending on the model. The EPA and DOJ coordinated a $100 million civil penalty, the largest Clean Air Act fine at the time, plus $50 million more in preventive measures. Affected owners received reimbursement for the difference between advertised and actual fuel costs.10United States Environmental Protection Agency. United States Reaches Settlement with Hyundai and Kia in Historic Greenhouse Gas Enforcement Case
Suppressed Reviews and Influencer Marketing
Fashion Nova paid $4.2 million in 2022 to settle FTC allegations that it had been hiding negative customer reviews. The retailer displayed product reviews as though they reflected all customer feedback, but reviews rated below four stars were blocked from appearing. The settlement barred Fashion Nova from misrepresenting reviews and required the company to post all reviews of currently sold products, with narrow exceptions for obscene, racist, or off-topic content.11Federal Trade Commission. Fashion Nova Will Pay $4.2 Million as Part of Settlement of FTC Allegations It Blocked Negative Reviews
Influencers face their own disclosure obligations. When an influencer has a financial relationship with a brand through payment, free products, or affiliate commissions, that connection has to be disclosed clearly and prominently. Ads disguised as organic content count as deceptive when they promote a product’s benefits without being readily identifiable as advertising, and vague labels like “spon” or “collab” don’t satisfy the requirement.12Federal Trade Commission. Native Advertising: A Guide for Businesses
The Laws Behind False Advertising Enforcement
Two federal statutes do most of the work. The FTC Act makes unfair or deceptive commercial practices unlawful and gives the Federal Trade Commission the power to investigate and stop them.13Office of the Law Revision Counsel. 15 USC 45 – Unfair Methods of Competition Unlawful The FTC can issue cease-and-desist orders, require corrective advertising, and impose civil penalties of up to $53,088 per violation as of 2026. Companies making objective claims about a product’s performance or health benefits must already have a reasonable basis for those claims before the ad runs.
The Lanham Act works differently. It lets businesses sue competitors directly for false or misleading advertising. Any company that believes it has been damaged by a competitor’s deceptive claims about the “nature, characteristics, qualities, or geographic origin” of goods or services can seek damages and injunctive relief.14Office of the Law Revision Counsel. 15 USC 1125 – False Designations of Origin and False Descriptions Forbidden Several major false advertising fights, including the Splenda dispute over its “Made from sugar, so it tastes like sugar” slogan, were brought by competitors under the Lanham Act rather than by the government. Splenda’s manufacturing process starts with sugar molecules but chemically transforms them into sucralose, a synthetic compound; the case settled confidentially just before trial, and the company later changed how it described the product in national advertising.
Origin claims carry their own rules. The FTC requires that any product labeled “Made in USA” without qualification be “all or virtually all” made domestically, meaning all significant parts and processing are of U.S. origin with no more than negligible foreign content. Manufacturers must have reliable evidence supporting the claim before making it.15Federal Trade Commission. Complying with the Made in USA Standard
How to Report False Advertising
If you think a company is running deceptive ads, you can file a report with the FTC at ReportFraud.ftc.gov. The site walks you through describing what happened, and the FTC feeds reports into Consumer Sentinel, a database shared with more than 2,000 law enforcement agencies. The FTC won’t resolve your individual complaint, but the reports help the agency spot patterns that trigger investigations.16Federal Trade Commission. ReportFraud.ftc.gov If you bought a product based on claims later found deceptive, watch for class-action notices; most of the cases above returned money to consumers who filed claims within the settlement window.