Most people know the advertising regulator exists and very few have read what it actually decides. That is a shame, because the rulings are the single best source of information about cosmetic claims available to the public: specific, reasoned, free to read, and considerably more candid than anything the industry publishes about itself.
What the system is
The advertising codes are written by the Committee of Advertising Practice for non broadcast advertising and by its broadcast counterpart, and they are administered by the Advertising Standards Authority. The codes apply to advertising in the UK across almost every medium, including a brand's own website and its social media, which is a point that still surprises people.
It is a self regulatory system with a statutory backstop. The ASA cannot fine anybody. What it can do is require an advertisement to be withdrawn or amended, publish a ruling naming the advertiser, withdraw trading privileges, ask platforms to remove paid advertising, and in persistent cases refer a matter to the Competition and Markets Authority or to Trading Standards for action under consumer protection law.
How a case starts
Almost always with a complaint. Anybody can complain, and complaints come from three sources with very different characteristics.
| Complainant | Typical concern | Characteristic of the case |
|---|---|---|
| A member of the public | A claim that seemed too strong, or an advertisement that felt inappropriate | Often about overall impression and how an ordinary reader understood it |
| A competitor | A specific comparative or technical claim | Usually well evidenced, technically detailed and vigorously argued on both sides |
| The regulator itself | A pattern noticed through monitoring or sweeps | Frequently covers a whole category or practice rather than one advertisement |
Competitor complaints deserve a moment. They are a substantial and underappreciated part of the system, and they mean that the most effective policing of extravagant claims in this sector is often done by rival companies with a commercial motive. That is not a criticism. It is how the mechanism actually gets its energy.
The test: overall impression
The central principle, and the one advertisers most often misjudge, is that the ASA assesses the overall impression an advertisement creates, not merely the literal accuracy of each sentence. Imagery, layout, emphasis, small print, context and juxtaposition all count.
This is why a technically accurate claim can still breach the code. A footnote that corrects a headline is not a defence if the headline is what the reader takes away. A percentage from a perception study is not a defence if the surrounding design implies a measured physical change. The question is what a reasonable consumer understood, not what a careful lawyer could parse.
Results may vary
That the advertiser acknowledges individual outcomes differ. It is a qualifying statement, usually placed in small print near a claim or a before and after image.
Used properly, a qualification adds material information a consumer needs.
It does not license an unsupported headline. A qualification cannot contradict, correct or rescue a main claim, and small print that reverses the impression created by the advertisement is treated as an aggravating feature rather than as a defence. It does not mean the results shown are typical, and it does not tell you what proportion of people saw anything at all.
The main claim would have to be accurate on its own before any qualification is added. Where outcomes genuinely vary, the candid construction states the range or the proportion, in the same prominence as the claim itself, rather than relying on a disclaimer to carry the difference.
What happens step by step
- Assessment. The complaint is reviewed to decide whether it raises a case under the codes. Many are resolved informally at this stage, with the advertiser agreeing to change or withdraw the advertisement.
- Investigation. Where a formal case proceeds, the advertiser is asked to respond and to produce its substantiation.
- Expert input. On technical matters the regulator can take independent expert advice on whether the evidence supports the claim.
- Ruling. The Council decides whether the code was breached and publishes the ruling, including the reasoning and the advertiser's arguments.
- Compliance. Where a claim is found in breach, the advertisement must not appear again in that form. Follow up action is available where it does.
Rulings are published at the ASA's rulings section and are searchable. Reading several in the beauty sector teaches more about the boundary of acceptable claims than any summary can.
A complaint led system, and what that means in practice
A regulator that acts on complaint responds to what is noticed rather than to what is most misleading. Advertising that reaches a large audience is more likely to be challenged than advertising in a niche. A competitor with a legal budget is more likely to complain than a shopper who is merely disappointed.
The result is a system that works well on prominent claims by prominent advertisers, and much less well on the long tail: small sellers, marketplace listings, and content that does not look like advertising at all.
This is not a criticism of the regulator, which has finite resources and no power to inspect before publication. It is a description of what a reactive system can and cannot cover.
- Large advertisers. Face real scrutiny, and adapt by writing more carefully than smaller rivals
- Small and marketplace sellers. Operate largely outside practical enforcement attention
- Competitors with legal resource. Can use the complaint mechanism as a competitive instrument
- Consumers. Are best protected in exactly the places where advertising is most visible
An observation about the structure of complaint led regulation, not about the conduct of the regulator.
What the ASA cannot do for you
It cannot get your money back. It cannot fine the advertiser. It cannot rule on whether a product is safe, which is a matter for the Office for Product Safety and Standards and Trading Standards. It cannot rule on whether a product is a medicine, which is for the MHRA. And it does not act on a single consumer's contractual dispute, which is a consumer rights matter.
Knowing which door to knock on saves a great deal of time.
| The problem | Where it goes |
|---|---|
| A misleading advertisement or claim | Advertising Standards Authority |
| An unsafe product, or one that has caused a reaction | Trading Standards, and the Office for Product Safety and Standards |
| Labelling that appears not to comply | Trading Standards |
| A cosmetic making medicinal claims | MHRA |
| Widespread misleading commercial practices | Competition and Markets Authority |
| Marketing emails you did not consent to | Information Commissioner's Office |
How to use the system well
Complaints are free and take a few minutes. What makes a complaint effective is specificity: identify the exact claim, where you saw it, the date, and why you think the impression it creates is not supported. A screenshot helps. A complaint that says an advertisement is annoying goes nowhere. A complaint that says a percentage was presented as a measured result when the footnote describes a perception study is a complaint the regulator can act on.
The wider point is that this system is public and underused. The rulings are a body of reasoning about how skincare advertising actually works, written by people who had to examine the evidence rather than take it on trust. For anyone trying to read this industry accurately, they are the primary source. Start with how a claim is substantiated before it is printed for what the advertiser is expected to be holding when the letter arrives.