Product Descriptions
Product descriptions are one of the highest-leverage, lowest-effort conversion levers on a product page. Here's how to write them so they actually sell.
Product Descriptions
The body copy on a product page that explains what an item is, who it's for, and why it's worth buying — written to convert, not just inform.
A product description is the block of copy beneath the title and price that turns a curious visitor into a buyer. Strong descriptions lead with the benefit, back it with a specific feature or material, and stay scannable: short paragraphs, bulleted specs, and answers to the objections shoppers actually have.
Most online stores inherit boilerplate copy from the manufacturer or supplier feed, paste it once, and never touch it again. That's the opportunity. Because the bar is low across the category, rewriting descriptions on your top 20 SKUs is often the cheapest measurable conversion win available — no developer, no redesign, no new tooling.
Description copy sits inside the broader discipline of PDP optimization, which also covers imagery, reviews, badges, and add-to-cart placement. Copy is the cheapest layer to fix and the easiest to test, which is why most CRO programs touch it first.
A useful product description does three jobs at once: it sells the outcome (what changes for the buyer), it de-risks the purchase (sizing, materials, returns, compatibility), and it satisfies search intent for long-tail queries that bring qualified traffic. Skip any of those three and the page leaks revenue.
Scannability = (Bullets * 2 + Subheads * 3 + Specifics) / Word_Count * 100
Bullets
Bullet points
Count of bulleted lines in the description
Subheads
Subheadings
Count of H2/H3 subheads breaking the copy into sections
Specifics
Specific claims
Count of concrete numbers, materials, dimensions, or named ingredients
Word_Count
Total words
Word count of the description body
A Shopify apparel store rewrites the description for a linen shirt. The new copy is 180 words and contains 6 bullets, 2 subheads ("Fabric" and "Fit"), and 9 specific claims ("100% European linen", "220 gsm", "machine wash cold", four measurements, two care instructions).
Bullets: 6
Subheads: 2
Specifics: 9
Word_Count: 180
→ 15.0
A scannability score above 10 typically reads well on mobile; below 5 means the copy is a wall of text. 15 is a strong rewrite — the page can be skimmed in under five seconds while still answering the buyer's questions.
The score is a sanity check, not a target. Past a certain point you're stuffing bullets to game it. Use it the first time you audit your top SKUs to flag the obvious wall-of-text pages, then let conversion rate decide which rewrites stick.
Typical conversion lift from rewriting product descriptions, by vertical and rewrite style
| Vertical | Manufacturer copy → Benefit-led | Wall-of-text → Scannable | Adding spec table |
|---|---|---|---|
| Apparel | +6% to +12% | +4% to +9% | +3% to +7% |
| Beauty & skincare | +8% to +15% | +5% to +10% | +2% to +5% |
| Home & furniture | +4% to +8% | +6% to +11% | +7% to +14% |
| Electronics & accessories | +3% to +6% | +5% to +9% | +8% to +16% |
| Food & supplements | +7% to +13% | +4% to +8% | +5% to +10% |
Ranges come from typical A/B test outcomes on top-traffic SKUs — your mileage depends on starting copy quality and category. Categories with high consideration (furniture, electronics) lean on spec tables; categories with sensory or identity-driven buying (beauty, apparel) lean on benefit-led narrative. Test both on a flagship SKU before rolling out catalog-wide.
Product description FAQs
Aim for 100-250 words on most SKUs. Higher-consideration purchases (furniture, electronics, supplements) earn longer copy with spec tables and use cases. Impulse purchases under €30 rarely benefit from more than 80-120 words.
Yes, in two ways. Duplicate content across hundreds of retailers means Google has no reason to rank your page over a larger competitor's. And boilerplate copy almost never targets the long-tail queries your actual buyers search, so you miss qualified intent traffic even when you do rank.
The first two to three lines (a benefit-led hook) should sit above the fold, immediately under the title and price. The full description, spec table, and care information can live below the add-to-cart button in a collapsed accordion. This is one of the most reliable PDP optimization patterns on Shopify themes.
For first drafts across hundreds of SKUs, yes — it beats keeping manufacturer copy. But generic AI output still needs a human pass to add brand voice, specific claims, and the objections only you know from support tickets. AI plus a 5-minute human edit per SKU is the practical workflow.
Sort SKUs by sessions, then by revenue per session. The top 10-20 products by traffic with below-median conversion rate are your highest-leverage rewrites — they already pull qualified visitors, the copy is what's leaking. Historical GA4 data will surface this list in an afternoon.
If a SKU gets more than ~500 sessions per week, test it — you'll have a result in 2-3 weeks and learn something transferable to the rest of the catalog. Below that threshold, ship the rewrite, monitor conversion rate over a 30-day window, and move on.
On mobile, almost always — they make the copy scannable in 3-5 seconds. The strongest pattern is a 1-2 sentence benefit hook followed by 3-6 bullets, then a short paragraph for tone and brand voice. Pure paragraph copy tests worst on phones.
A feature is what the product has ("merino wool, 200gsm"). A benefit is what changes for the buyer ("stays warm wet, doesn't smell after three days hiking"). Strong descriptions pair them: lead with the benefit, back it with the feature so the claim is believable.
Yes, but naturally. Cover the queries buyers actually type — material, use case, size, compatibility, occasion — once each in the body and bullets. Stuffing the same head term five times hurts readability without helping rankings; modern search rewards semantic coverage.
Audit your top 20 SKUs every 6 months — new objections surface in support tickets, reviews reveal language buyers actually use, and seasonal use cases change. Long-tail SKUs in the bottom 80% of traffic can stay untouched for years without losing meaningful revenue.
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