FTC supplement advertising rules, explained

Who regulates what

Two agencies share the job. The FDA covers the label and labelling: what is printed on the bottle and in material that ships with it. The FTC covers advertising: ads on Meta and Google, your website, emails, influencer posts and anything else that sells the product.

That split matters because the FDA’s required disclaimer (“This statement has not been evaluated by the Food and Drug Administration…”) is a labelling rule. The FTC says plainly that the disclaimer does not make a misleading ad acceptable.

The evidence standard

This is the rule behind most FTC cases against supplement brands. A health claim needs competent and reliable scientific evidence before the ad runs.

In practice, the FTC guidance says:

• Human trials carry the weight. For a health benefit, the FTC generally expects randomised, controlled human clinical trials. Animal studies, lab studies and customer stories are not enough on their own.
• The evidence has to fit the claim. A study on one ingredient at three times your dose says little about your product. The FTC looks at whether the research matches your formula, your dose and the benefit you name.
• The whole ad counts. The FTC judges the overall impression, including images, a product name like “SleepCure”, and what a reasonable reader takes away, as well as the literal words.
• Structure/function claims need the same proof. “Supports healthy digestion” is allowed on a supplement where “treats IBS” is not. The FTC still expects evidence for the softer claim.

The practical fix is a claims list: every claim the brand makes, the evidence behind each one, and the exact wording approved. Ads, landing pages and creator briefs pull from that list and nothing else.

Influencers and endorsements

The FTC revised its Endorsement Guides in 2023, the first update since 2009. For supplement brands, three points matter most:

• You are responsible for what creators say. If a creator you paid or gifted product says “this fixed my anxiety”, that is your disease claim.
• The paid relationship has to be disclosed clearly, in the post itself, where people will see it. A tag buried among hashtags or behind “more” does not count as clear.
• A testimonial cannot claim what you could not prove. A customer’s honest story is still your ad, so the claim in it needs the same evidence as anything else you say.

Brief every creator with the approved claims list, and review posts before they go live or before you put ad spend behind them.

Reviews

Since October 2024 the FTC’s Consumer Reviews and Testimonials Rule has let it seek civil penalties for each violation. It covers:

• writing, buying or selling fake reviews and testimonials
• paying or rewarding customers for reviews that say something positive (or negative, about a competitor)
• reviews from employees or their family without disclosing the connection
• hiding or suppressing negative reviews while showing the rest

Asking every customer for a review, with no condition on what they say, is fine. Offering a discount only for five-star reviews is not.

Subscriptions and auto-ship

Supplements make most of their money on the reorder, so auto-ship is common. The Restore Online Shoppers’ Confidence Act sets three requirements for any subscription or free trial that turns into one:

1. Clear disclosure of all the important terms, including price, frequency and how to cancel, before you take billing details.
2. Express informed consent to the recurring charge. A pre-ticked box does not count.
3. A simple way to cancel.

Auto-ship done this way is also better for the business: customers who know how to leave are more willing to sign up.

What enforcement looks like

In April 2023 the FTC sent notices of penalty offenses to about 670 companies that market supplements, functional foods, over-the-counter drugs and homeopathic products. Receiving one did not mean a company had done anything wrong. It meant the company was now on notice that unsupported health claims are illegal, which lets the FTC seek civil penalties, of tens of thousands of dollars per violation, if that company makes them.

For a small brand, the more common outcome is quieter: ad accounts restricted by the platforms, payment processors asking questions, and marketplaces pulling listings. The rules above are the same ones those companies check against.

A claims checklist

Run every new claim through these questions before it goes into an ad, a landing page or a creator brief.

1. Is the claim on the approved claims list, word for word?
2. Is there human evidence behind it, on a matching formula and dose?
3. Does it describe a normal body function, with no disease or symptom named as the thing it fixes?
4. Does the whole ad, including images and the product name, say only what the evidence supports?
5. Are testimonials limited to what you could prove, and do they reflect typical results?
6. Is every paid or gifted creator relationship disclosed in the post itself?
7. Are all reviews real, unpaid for sentiment, and shown in full, the negative ones included?
8. If it is a subscription, are the terms shown before checkout, agreed to on purpose, and easy to cancel?

For how these rules turn into ads that platforms approve, see supplement advertising examples. Every ad we run for a client goes through this list first.