ChatGPT Prompts for Product Descriptions That Sell

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If you sell anything online — a few handmade candles on Etsy, a side-hustle store on Shopify, or stock on eBay — you already know the problem. You can write a description. You just can't face writing the two hundredth one. And when you rush it, you get the same bland waffle everyone else has: "high quality", "perfect for any occasion", "made with premium materials". Nobody has ever bought anything because it was "perfect for any occasion".

ChatGPT is genuinely good at this job, but only if you prompt it properly. Ask it for "a product description" and you'll get generic mush. Give it a persona, a customer, a pain point and a format, and it'll produce copy you'd happily paste straight into your listing. Here's how to do that.

Start with the right ingredients, not the right wording

The single biggest mistake is treating ChatGPT like a magic phrase machine. It isn't. It's a writer who knows nothing about your product until you tell it. So before you type a single prompt, gather four things:

1. The raw facts. Dimensions, materials, weight, what's in the box, anything that differs between your version and the cheap one. 2. The buyer. Who actually buys this? A 34-year-old new dad? A gardener in their sixties? A student in a rented flat with no drill? 3. The pain. What problem does it solve? What's annoying about the alternative? 4. The tone. Warm and chatty, dry and technical, premium and understated?

Feed all four in and the output improves dramatically. Here's a prompt template you can reuse forever:

"You are a UK ecommerce copywriter. Write a product description for [PRODUCT]. Facts: [LIST FACTS]. The buyer is [BUYER]. Their main frustration is [PAIN]. Tone: [TONE]. Write 120-150 words in British English. Lead with the benefit, not the feature. Include one specific detail that proves quality. End with a gentle call to action. Do not use the words 'premium', 'high quality', 'perfect for any occasion', or 'elevate'."

That last sentence matters more than you'd think. Banning the clichés forces it to actually describe your product.

The five prompts worth keeping in a notes file

The benefit-first opener. "Rewrite this feature list as five customer benefits, each starting with a verb. Then pick the strongest one and write a 25-word opening line for the listing." This is your headline. Most sellers waste it on the product name.

The objection crusher. "List the five most common reasons someone would hesitate to buy [PRODUCT]. For each, write one reassuring sentence I can add to the description." This is where the sales actually happen — the person worried it won't fit their shelf, or that it'll break in a month.

The Amazon bullet points. "Write five Amazon bullet points for [PRODUCT]. Each under 200 characters, each starting with a capitalised benefit in two or three words, then a colon, then the explanation." Short, scannable, keyword-friendly.

The SEO version. "Rewrite this description to naturally include the phrases [KEYWORD 1], [KEYWORD 2] and [KEYWORD 3]. Keep it readable — no keyword stuffing. British English."

The variant generator. "Write the same description three ways: one for a marketplace listing, one for an Instagram caption, one for an email to past customers." One product, three channels, one prompt.

Make it sound like a human, not a chatbot

ChatGPT has tells. It loves the word "elevate". It adores a triadic rhythm — "stylish, functional, and durable". It writes "whether you're... or..." far too often. It'll also happily invent facts if you let it.

Three fixes:

Give it a voice sample. Paste in 100 words of your own writing — an old listing, a newsletter, a caption you liked — and add: "Match the rhythm and vocabulary of this sample." This one trick is worth more than any clever prompt wording.

Ask for a banned-words pass. "Now remove every instance of 'elevate', 'whether you're', 'look no further', and any sentence that could apply to a completely different product."

Never let it guess specs. Add: "If a fact isn't in my notes, write [CHECK] instead of inventing it." You'll catch the fabrications before they reach a customer.

If you sell physical goods and want a decent scale for weighing out materials or checking parcel weights for postage, a set of digital scales is a genuinely handy bit of kit for a home operation — accurate weights make for accurate listings.

Once you've got prompts working for product descriptions, the same approach applies to everything else you write — blog posts, newsletters, social captions. If you'd rather skip the trial and error, our Content & Blogging Pack is 30 proven prompts covering blog writing, SEO, newsletters and social media, from £9. It's the done-for-you version of what this article teaches.

Test before you publish

Don't paste straight from ChatGPT into your live listing. Run a quick check:

Read it aloud. If you stumble, a customer will too. Count the words — marketplace listings often have limits, and Etsy shoppers skim. Check every factual claim against your notes. Then look for the sentence that does the actual selling: the one that names the buyer's problem and solves it. If you can't find that sentence, the description isn't finished.

A useful final prompt: "Act as a sceptical UK shopper who's comparing this to a cheaper alternative. What's missing from this description that would stop you buying?" Its answer is usually your best edit.

Finally, keep a swipe file. When a prompt produces something good, save the prompt and the output together. Within a month you'll have a personal library that beats any generic template — because it's tuned to your products and your customers.

The bottom line

ChatGPT won't write your product descriptions for you. It'll write them with you, at ten times the speed, if you give it the four ingredients: facts, buyer, pain, tone. Ban the clichés, feed it a voice sample, and check every claim before it goes live. Do that and your listings will stop sounding like everyone else's — which, in a marketplace full of "premium" and "perfect for any occasion", is most of the battle won.