Rules and ethics
Part of Conversion copywriting for UK product pages that sell
Conversion copywriting for UK product pages that sell
How to write conversion copy for UK product pages: matching shopper questions, substantiating claims under UK consumer law and testing changes.
What to take away
- Conversion copywriting for product pages starts with the question the shopper typed or thought, not with a list of features.
- Every factual claim needs evidence you could show a regulator, because UK consumer law and the advertising codes both apply to shop copy.
- Persuasion comes from structure, specificity and plain description of what happens after purchase.
- Treat each copy change as a test with a baseline, a defined audience and a way to undo it.
- Statutory details such as price, delivery and cancellation rights belong on the page in full, not behind a policy link.
Start with the question the shopper already has
Most product pages open with a brand sentence and a superlative. Shoppers arrive with something narrower: will this fit, will it arrive by Friday, does it need an adapter. Answer that first.
Write down the questions your support inbox receives most often about the product. Those questions become your heading order. A heading that repeats the customer's own wording earns more attention than a clever one.
Our product page CRO guide shows how to place those answers around the fold, the gallery and the buy box without crowding the page.
What UK consumer law lets you claim
Goods must match the description you give them under the Consumer Rights Act 2015. Copy is a description. A page that calls an item waterproof when it is not creates a problem no split test can fix.
The CAP advertising codes add a second layer: claims must be substantiated before they run, and qualifications must be clear rather than buried.
A claim that a product is cheaper than a rival needs a defined comparison and evidence. A sales badge is not evidence.
Consumer law and the advertising codes overlap. Copy that is true and clear tends to satisfy both, so the practical test is whether you could show the source.
Structure that carries persuasive copy
Readers scan before they read. A product page usually works when the order runs: what it is, who it suits, the practical details, then reassurance.
Weak vs working product page copy
Weak line
- Product heading
- Premium Quality Widget
- Subheading
- Loved by everyone
- Bullet list
- Great value
- Below the buy box
- 100% satisfaction
Working line
- Product heading
- Widget, 240mm, stainless steel
- Subheading
- For cyclists who ride in the rain
- Bullet list
- Fits frames up to 40mm, spare pads included
- Below the buy box
- Free returns, window stated at checkout
Job
- Product heading
- Name the item and variant
- Subheading
- Say who it suits
- Bullet list
- Answer the specifics
- Below the buy box
- Remove the risk
Weak line
- Product heading
- Premium Quality Widget
- Subheading
- Loved by everyone
- Bullet list
- Great value
- Below the buy box
- 100% satisfaction
Working line
- Product heading
- Widget, 240mm, stainless steel
- Subheading
- For cyclists who ride in the rain
- Bullet list
- Fits frames up to 40mm, spare pads included
- Below the buy box
- Free returns, window stated at checkout
The working column names something the shopper can check. The weak column asks for trust it has not earned.
Writing the words: a five-step pass
- Collect the raw material. Pull together support emails, returns reasons, review text and the specification sheet before writing a word.
- Group by question, not by feature. Each group becomes one heading on the page.
- Draft the plain version first. Write the sentence you would say to a customer in the shop.
- Cut adjectives that carry no information. Premium, luxury and high quality describe nothing.
- Check every remaining claim against a source you hold.
Required information on the same page
The Consumer Contracts (Information, Cancellation and Additional Charges) Regulations 2013 set out what a distance seller must tell a consumer before they order. The 2013 Regulations require that information to be clear and comprehensible.
Put delivery charges, the returns window and the trader's identity where the buyer can see them without leaving the page. Burying them behind a link is both a compliance risk and a conversion drag, because the shopper leaves to look.
Our UK ecommerce trust signals note explains how visible returns and contact details change what shoppers believe about a store.
Testing a copy change without fooling yourself
Copy changes are easy to make and hard to attribute. Decide what number the change should move, and write that down before you publish.
Then run the change as a defined comparison, with a start date, a decision rule and a way to reverse it. Without a baseline from before the edit, a rise in orders tells you little.
Keep the old copy in the version history. If the change fails, restoring it should take minutes, not a rebuild.
Common questions
Does persuasive product copy need to be short?
No fixed length wins. Clarity and completeness matter more. A technical item may need 400 words, a simple accessory 80.
Can I use customer reviews as claims?
Quoting a review is fine, but it does not make the claim true. If you repeat a review's claim in your own words, you own it.
Do the same rules apply in Scotland, Wales and Northern Ireland?
The Consumer Rights Act 2015 applies across the UK. Pre-contract information rules sit in separate instruments, so check the one that covers your customers before you rely on it.
What is the first thing to fix on a product page?
The heading order. If the top of the page does not match the shopper's question, no amount of adjective tuning will fix the rest.
