Ecommerce Copywriting
How to Write Product Descriptions That Sell
A simple structure for product descriptions that sell, with three before-and-after examples and the mistakes that cost sales.
· 6 min read
Key takeaways
- A product description sells when it answers the one real doubt stopping that shopper, not when it lists every feature.
- Use the same order every time: title with a search term, a one-line hook, a short benefit paragraph, then bullets and specs.
- Replace vague adjectives like "premium" and "high-quality" with a specific moment of use or a sensory detail.
- Match the length to the price point: short for simple cheap items, longer for anything complex or expensive.
Most product descriptions describe. The good ones sell. If you're staring at a blank product page wondering why traffic isn't turning into orders, the fix is rarely a better adjective. It's a different structure, built around the moment someone decides to buy rather than the moment they land on the page.
This guide covers how to write product descriptions that sell: a simple structure you can reuse on every product page, three before-and-after rewrites, and the mistakes that quietly cost stores sales.
How do you write product descriptions that sell?
A product description sells when it answers the specific doubt stopping that shopper from buying, not when it lists every feature the product has. It should describe the moment of use, not just the material or the spec sheet, and it should answer the one question the shopper is quietly asking before they open their wallet.
That's a different job from the one most product pages are doing. Walk through any store and you'll see the same pattern: a title copied from the supplier, a paragraph of adjectives ("premium", "high-quality", "innovative"), then a spec table. None of it is wrong, exactly. It just doesn't do anything a competitor's identical page couldn't also do.
The shopper isn't comparing your copy to great copy elsewhere. They're comparing it to the five seconds they'll spend deciding whether to keep scrolling. Your job in that window is to answer one question: why this one, and why now?
A simple structure for writing product descriptions that convert
I write almost every product page in the same order, because this is the order a shopper actually reads in.
- Title — the search term a shopper would type, plus the product name. "Insulated Steel Water Bottle, 750ml" beats a brand-only name like "The Rover Bottle" because it does the SEO job and the clarity job at once.
- Hook — one line about the moment of use, not the material. Not "double-wall vacuum insulation" but "still too hot to drink by the time you reach the top."
- Benefit paragraph — two or three sentences. Short. Concrete nouns, not abstract ones. What does owning this actually change about the buyer's day?
- Bullets — three to five, each one a feature turned into a reason, not a feature left as a spec. "18/8 stainless steel" becomes "no plastic taste, even after months of use."
- Specs — a short table or list for the comparison shopper who's already decided they want this kind of product and is now checking it fits.
Most stores skip straight to bullets and specs and never write the hook or the benefit paragraph. That's the part that actually persuades; the specs just confirm the decision once it's made.
Three before-and-after product description examples
These are illustrative examples I've written to show the method, not real client work.
Scented candle Before: Luxury handcrafted soy candle with a relaxing fragrance. Makes a great gift. After: Lit at 6pm, still filling the room at 11. This one's hand-poured in small batches with a cotton wick that burns flat, not down the middle, so you get the full 45 hours, not the usual 25 before it tunnels and dies.
Desk lamp Before: Modern LED desk lamp with adjustable brightness. Energy efficient and stylish. After: Dims low enough for a 10pm video call without lighting up your whole room, and bright enough at full power to read small print without squinting. Touch the base once for warm light, twice for daylight white.
Dog lead Before: Durable nylon dog lead, available in multiple colours. Comfortable to hold. After: Stops your arm aching on the long walks. The handle's padded where your hand actually grips it, not just at the end, and the clip is the kind that doesn't pop open when a dog lunges at a squirrel.
Notice the pattern: every "after" names a specific moment, not a category of benefit. "Comfortable" is a claim. "Doesn't ache on the long walks" is a reason to believe it.
How long should a product description be?
There's no fixed word count that works for every product. A cheap, simple item (a phone case, a notebook) needs two or three sentences and a few bullets; piling on paragraphs makes a small purchase feel like it needs more thought than it does. A complex or expensive item (furniture, electronics, anything with a real learning curve) earns a longer description, because the shopper has more questions and more to lose if they choose wrong. Match the length to how much convincing the price point actually requires.
Common product description mistakes that kill conversions
- Copying the manufacturer's or supplier's description. If ten other stores sell the same item with the same words, search engines have no reason to favour yours, and shoppers have no reason to buy from you specifically.
- Listing specs with no benefit attached. "600D polyester" means nothing to most buyers until you tell them what it does for them: wipes clean, doesn't fade in sun, survives the dishwasher.
- Leaning on vague adjectives. "Premium", "high-quality", "amazing", "game-changing" — every competitor can claim the same words, so none of them do any work. Replace each one with a fact or a sensory detail.
- Skipping the one real objection. Every product has a doubt that stops the sale: will it fit, will it last, will it smell. Find it and answer it before the shopper has to go looking in the reviews.
- No search term in the title or opening line. A beautiful description that never uses the words a shopper actually searches for a product like yours won't get found in the first place.
Do you need SEO keywords in product descriptions?
Yes, but naturally. Put the main search term a shopper would use for that exact product in the title and the opening line, where it reads like normal language, not a keyword list. Avoid repeating the same phrase in every bullet; search engines don't reward that, and shoppers notice the repetition faster than algorithms do. If you want the fuller picture of how product and category pages fit into search strategy, this guide to SEO content writing covers what else matters beyond the product page itself.
A quick product description checklist
Before you publish a product page, check that it:
- Names a specific moment of use, not just a feature
- Turns every bullet into a reason, not a bare spec
- Answers the one real objection a shopper has about this product
- Uses the search term a shopper would actually type, once, naturally
- Isn't a copy-paste of the supplier's or manufacturer's wording
- Is as long as the price point and complexity actually need, no longer
Frequently asked questions
Should product descriptions be written in first or third person?
Either works; what matters more is consistency across your catalogue. Second person ("you") tends to perform well because it keeps the focus on the buyer's experience rather than the product in isolation, but match whatever tone the rest of your store already uses.
Can I reuse supplier or manufacturer descriptions?
You can start from them for the facts, but rewrite the wording. Duplicate copy across multiple stores gives search engines no reason to rank you over a competitor selling the same item, and it reads as generic to shoppers who've seen it before on another site.
How many bullet points should a product description have?
Three to five is usually the sweet spot. Fewer and you're probably missing a real feature worth mentioning; more and shoppers start skimming past them. Order them by how much each one matters to the decision, not by how the specs happen to be listed on the box.
Do product descriptions need a call to action?
On most ecommerce platforms the "Add to basket" button is already doing that job, so you don't need a separate line telling someone to buy. A short line addressing a final hesitation (sizing, delivery, returns) usually does more than a generic "buy now".
Getting help with your product pages
If you've got a catalogue of pages that still read like spec sheets, my ecommerce copywriting service covers product descriptions, category pages and offer copy built around this structure. You can see the method applied across a full set of product pages, including a before-and-after rewrite, in this sample ecommerce product description project.