Most product descriptions describe the product, which is the one job nobody needed doing. The photos already did it. Here's what the words are actually for.
Most product descriptions describe the product. That's the one job nobody needed doing, because the photographs already did it and did it better.
The words are there to answer the question stopping the sale. Every category has one, sometimes two, and if the description doesn't answer it the buyer either emails you or leaves. Most of them leave.
What a description is actually for
Somebody has scrolled to your description. That means the photos got them interested and something is still unresolved. They're not reading for pleasure. They're looking for one specific thing.
In apparel it's sizing. In skincare it's ingredients or skin type. In electronics it's compatibility. In furniture it's dimensions. In food it's what it actually tastes like. In anything expensive it's whether it will last.
The description exists to remove the last reason not to buy. Everything else in it is packaging.
That reframe changes what you write. You stop writing "crafted from premium materials" and start writing "fits waists 30 to 32 inches; if you're between sizes, size down." One of those is filler. The other ends the argument.
The structure that works
Four parts, in this order.
One: the benefit line. One or two sentences at the top answering "why would I want this." Not what it is, what it does for the person reading. This is the only part most people read, so it carries the most weight and gets written last.
Two: three to five bullets. The things that matter, scannable in ten seconds. Each bullet is a fact with a consequence attached: not "merino wool" but "merino wool, so it doesn't hold smell between wears."
Three: the objection paragraph. The blocking question, answered directly. Sizing guidance, compatibility, care, what's in the box. This is the part most stores skip and the part that decides it.
Four: the spec table. Dimensions, materials, weight, what's included, warranty. A table, not prose. Nobody reads specs, they look them up, and a table is faster to look something up in.
The whole thing runs 120 to 250 words for most products. Longer is fine when the purchase is considered and the buyer genuinely wants detail. Longer to hit a word count is how you end up with three paragraphs about your brand's journey above the thing somebody actually needed.
What to include, and what to cut
Include:
- The benefit, in the first line
- The blocking question, answered
- Sizing or fit guidance where it applies, in real numbers
- Materials and what they mean in use
- Dimensions and weight
- What's in the box
- Care or usage instructions
- Returns and warranty terms, or a link to them
- A scale reference if the photos don't already give one
Cut:
- The manufacturer's copy. It's on forty other sites, Google knows, and so does the reader
- Your brand origin story. It belongs on the About page
- "Premium," "high-quality," "carefully curated." These are words that survive because nobody can disprove them
- Anything that would be equally true of a competitor's product. If you can paste it onto their page unchanged, it isn't doing work
- Keyword repetition. More on that below
The test: could someone who has never seen this product decide whether it's right for them, in under a minute, without asking you anything?
Examples, good and bad
Bad, and typical:
Our Signature Wool Sweater is crafted from premium materials with meticulous attention to detail. Designed for the modern individual, it seamlessly blends comfort and style. A timeless addition to any wardrobe.
Forty words, zero information. Nothing there is checkable, nothing is specific to this sweater, and a buyer worried about sizing or itchiness leaves knowing exactly as much as they arrived with.
Better:
A merino sweater you can wear three days running without it smelling. Mid-weight, so it works on its own in autumn and under a jacket in January.
- 100% merino, 18.5 micron, so it's soft against skin rather than scratchy
- Naturally odor-resistant, wear several times between washes
- Mid-weight at 280gsm, warm without bulk
- Machine washable on wool cycle, no dry cleaning
Sizing: true to size with a slight taper. Chest measurements below. If you're between sizes or prefer room to layer, size up. Our model is 6'1" and wears a medium.
Same product. The second one answers itchiness, warmth, washing and fit, which are the four things people worry about when buying wool. It's also specific enough that a competitor couldn't paste it onto their page.
Note that it's barely longer. The first one wasted forty words saying nothing.
Writing for search without wrecking it
seo product description gets 600 searches a month, which tells you plenty of people are trying to solve this and most of the advice is a decade out of date.
What still matters:
- Write for the person. Google has been able to detect keyword stuffing for many years and rewards pages people don't bounce off.
- Use the words buyers use. If people search "waterproof" and your copy says "hydrophobic membrane," you've written yourself out of the result. This is keyword research, but the useful kind.
- Cover the variants naturally. Color, size, material and use case will appear on their own if you're writing properly.
- Unique text on every product. Duplicate descriptions across variants are the most common ecommerce SEO problem after empty collection pages, and they're both covered in the SEO audit.
What doesn't matter any more: keyword density, exact-match repetition, a minimum word count. Those are 2014 rules and following them produces the worst copy on the internet.
The honest position: the description is not usually what makes a product page rank. Titles, internal links, site structure and speed do more. The description makes the page convert once somebody lands, and that's a bigger prize.
The template
Paste this into a product, fill it, delete what doesn't apply.
[BENEFIT LINE]
One or two sentences. What this does for the buyer.
Written last, read first.
[BULLETS]
• [Feature], so [what that means in use]
• [Feature], so [what that means in use]
• [Feature], so [what that means in use]
[OBJECTION]
The one thing people ask before buying, answered in real numbers.
Sizing / compatibility / ingredients / dimensions / care.
Include a reference point: "our model is 6'1" and wears a medium."
[SPECS]
Dimensions | Materials | Weight | In the box | Warranty
[REASSURANCE]
Returns window and shipping, or a link to them.
Two rules for using it. Write the objection section first, because it's the one that matters and the one you'll skip if you leave it last. And write the benefit line last, once you know what the product actually offers.
Where AI helps, and where it doesn't
Generating descriptions with AI is now standard, and it's genuinely useful for the parts that are mechanical: turning a spec sheet into bullets, adapting one description across forty variants, drafting something to edit rather than staring at an empty field.
What it can't do is know your blocking question. It has never read your support inbox, never seen a return reason, never watched somebody hesitate over sizing. It will produce something fluent, generic and safe, which is a different problem from a blank page rather than a solution to it.
The workflow that works: you write the objection paragraph, the machine drafts the rest, you cut a third of it.
That's also roughly how we've built this. Qosmic reads your storefront, flags the product pages where the description isn't doing its job, then generates the replacement inside your theme using your own components and stages it as a draft you approve. The detection is the part that's hard to do by hand across two hundred products. The writing is the part you should still have an opinion about.
Common problems, and the fix
Descriptions written by the manufacturer. Rewrite the top twenty by revenue. Ignore the rest until those are done.
The same text on every variant. One good description on the parent product beats forty duplicates.
Walls of text. If it doesn't scan in ten seconds it isn't read. Bullets and a table.
No sizing or dimensions. The single most common cause of both lost sales and returns.
Brand voice doing all the work. Personality is good. Personality instead of information is a page nobody can buy from.
The short version
A product description isn't a description. It answers the last question standing between the buyer and the button.
Benefit line, three to five bullets, the objection answered, a spec table. 120 to 250 words for most products.
Cut anything you could paste onto a competitor's page unchanged.
Write for the person, use the words buyers actually use, and stop counting keyword density.
And if you only fix one thing: answer the sizing question in real numbers, with a reference point. It's the most common blocker in ecommerce and most stores still don't do it.
