What may lawfully be claimed
Because no regulator approves efficacy claims for these products, the discipline on claims comes from advertising law. Knowing what it requires tells you when a page has crossed a line.
Advertising in the United Kingdom is governed by the CAP Code, administered by the Advertising Standards Authority, and by consumer protection law. Marketers must hold documentary evidence for objective claims before making them. They must not mislead, including by omission or by exaggeration. They must not trivialise a procedure or present it as risk free. Advertising for cosmetic interventions must not be directed at under eighteens.
Those rules apply to clinic websites, social media accounts, paid advertising and influencer content. ASA rulings are published and searchable, which means you can see for yourself what has already been found unacceptable in this sector, and a great deal of it will look familiar.
5.4.1Why advertising law is doing the work
Because the regulatory route these products take does not approve efficacy claims. A conformity assessment addresses safety and performance. It does not review or authorise the sentence on a clinic homepage promising visibly firmer skin.
The consequence is that the only body examining whether such a sentence can be supported is the advertising regulator, and only if somebody complains or the ASA takes the matter up itself. That is a reactive system, which is why so much unsupportable material circulates, and it is also a system that patients can use.
5.4.2What the rules require
Evidence for objective claims
An advertiser making a claim capable of objective substantiation must hold documentary evidence for it before publishing. A claim that a treatment stimulates collagen production, improves skin quality or produces results lasting a stated period is an objective claim, and the advertiser must be able to produce evidence for it if asked.
No misleading by omission
Material information cannot be left out. A claim of no downtime for a treatment that commonly produces visible swelling and possible bruising is a candidate for this, as is a price that omits the fact that a course is required.
No trivialising
Cosmetic procedures may not be presented as trivial or risk free, and rules exist about promotional techniques that pressure decisions.
Not directed at under eighteens
Advertising for cosmetic interventions must not be targeted at people under eighteen. This interacts with the offences under the Botulinum Toxin and Cosmetic Fillers (Children) Act 2021 in England, which are covered separately.
Testimonials and before and after imagery
Testimonials must be genuine and must not make claims the advertiser could not make itself. Before and after images must be genuine and representative, and must not be manipulated or taken under different conditions in a way that exaggerates the difference.
| Claim type | Example | What the rules require |
|---|---|---|
| Objective efficacy claim | Improves skin firmness | Documentary evidence held before publication |
| Mechanistic claim | Stimulates collagen production | Evidence, and it must not imply an outcome the evidence does not support |
| Duration claim | Results last a stated period | Evidence for the stated duration |
| Safety claim | Completely safe, no risks | Procedures may not be presented as risk free or trivial |
| Recovery claim | No downtime | Must not mislead by omission where visible effects are common |
| Testimonial | A patient quote | Genuine, and not making claims the advertiser could not |
| Before and after image | Paired photographs | Genuine, representative, not manipulated or taken under different conditions |
| Incentivised social content | A creator post about their treatment | Clearly identifiable as advertising |
A framework written by this publication to organise a decision. It is not a measurement, it is not drawn from any study, and no figure in it should be quoted as a finding.
5.4.3Patterns worth recognising
Reading clinic material with the rules in mind produces a short list of recurring moves.
- Unfalsifiable language. Regenerative, bio remodelling, cellular renewal. Not objective claims, so not straightforwardly substantiable, and therefore harder to challenge. This is why the vocabulary is used.
- Mechanistic claims stated as outcomes. Stimulates collagen sounds like a result and is a laboratory measurement at best.
- Study references without studies. Clinical studies show, with nothing to look up.
- Numbers with no provenance. Satisfaction rates and improvement percentages that appear across many sites in identical form.
- Risk free framing. Natural, so safe. Origin is not a safety argument.
- Urgency and discount pressure. Limited offers on an elective medical procedure work directly against considered consent.
5.4.4How to complain, and what happens
Anyone can complain to the ASA and it is free. You need the advertisement, where you saw it, and what you think is wrong with it. The ASA assesses whether the material breaches the Code, may ask the advertiser for its evidence, and publishes rulings. Where a ruling is upheld, the advertiser must change or withdraw the material.
The rulings database is worth browsing even if you never complain, because it shows in concrete terms what has already been decided. It is also a useful check on your own judgement: if something on a clinic page strikes you as overstated, the chances are the same claim has been considered before.
Separately, consumer protection law addresses misleading commercial practices in the sale of services, and Citizens Advice publishes accessible guidance on where those rights apply.
5.4.5Influencer and social content
The rules apply to social media, and paid or otherwise incentivised content must be clearly identifiable as advertising. A treatment provided free or at a discount in exchange for content is advertising, and labelling it as such is not optional.
This matters for a reader because a great deal of what circulates about this treatment reaches people through content that does not look like advertising. A post describing a personal experience, from someone who received the treatment free, is an advertisement, and the disclosure requirement exists so that you can weigh it accordingly.
5.4.6Using this as a reader
You are not obliged to complain about anything. The practical value of knowing the rules is different: it gives you a standard against which to read what you are shown. A page that would struggle to substantiate its claims if asked is a page whose author has decided that being asked is unlikely, and that tells you something about the practice behind it that no amount of reading about mechanism would.
Questions
Who checks what clinics claim about this treatment?
The Advertising Standards Authority, applying the CAP Code, and trading standards under consumer protection law. No regulator approves efficacy claims in advance, so the system is reactive: material is examined after a complaint or on the ASA's own initiative.
Can a clinic say a treatment is clinically proven?
Only if it holds documentary evidence capable of supporting the claim. Clinically proven is not a regulatory term and carries no approval behind it. If you see it, the useful response is to ask which study, in whom, measuring what.
Are before and after photos regulated?
Yes. They must be genuine and representative, and must not be manipulated or taken under different lighting, angles or conditions in a way that exaggerates the difference. This site publishes none, for reasons set out on the editorial standards page.
Is influencer content covered?
Yes. Content that is paid for, or provided in exchange for a free or discounted treatment, is advertising and must be clearly identifiable as such. A great deal of what circulates about this treatment reaches people through content that does not look like advertising.
How do I complain about an advert?
Through the ASA, free, online. You need the advertisement, where you saw it and what you think is wrong with it. Rulings are published, and browsing the rulings database is useful even if you never complain, because it shows what has already been found unacceptable.
- The UK Advertising Codes, CAP and BCAP
- Advertising Standards Authority
- ASA rulings database
- The Consumer Protection from Unfair Trading Regulations 2008
- Botulinum Toxin and Cosmetic Fillers (Children) Act 2021
Links to regulators, professional bodies, legislation and research indexes. They are cited because they are public and checkable, not as endorsement of this publication. No source listed here has any commercial relationship with us.
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