A great product description does one job: it helps a hesitant shopper feel confident enough to add to cart. AI can write twenty descriptions in the time it takes you to write one — but only if you give it the same information a senior copywriter would demand before putting fingers to keyboard.
Product descriptions are the most underestimated form of writing in e-commerce. Most teams treat them as spec sheets — colour, size, material, done. The result reads like a packing slip and converts like one. The fix is to brief AI with the same care you would brief a freelance copywriter who has never seen your product before. That means specifying the buyer, the friction, the proof, and the voice. This tutorial gives you a reusable template that does exactly that.
Strong product copy translates features (what the product has) into benefits (what the buyer feels). "Made from 0.6mm aluminium" is a feature. "Light enough to carry on a school run without strap dig" is a benefit. Shoppers respond to benefits because benefits answer the silent question every shopper is asking: "What changes for me if I buy this?"
Think of every product page like a one-minute conversation with a hesitant friend. They are interested but uncertain. Your job is to acknowledge the doubt, paint the felt outcome, give one piece of social proof, and remove one specific risk. Do all four and they will buy. Skip any and they will close the tab.
A useful frame is the FAB formula — Feature → Advantage → Benefit. The feature is what is true about the product. The advantage is what that lets it do. The benefit is what that means for the buyer's life. AI is happy to write all three layers if you ask for them by name.
Weak prompt
Write a product description for our new laptop bag.You will get something like: "Our stylish and durable laptop bag combines functionality and elegance. Perfect for the modern professional." — a sentence so generic it could describe a thousand other bags. It has zero specifics, zero buyer empathy, and zero reasons to choose this bag over a competitor.
Strong product description prompt
Act as a senior e-commerce copywriter who specialises
in everyday-carry accessories.
Write a product description for the following:
Product: "CarryWell Slate 14" — a slim laptop tote for
14-inch laptops. Made from recycled canvas with vegetable-
tanned leather handles. Side pocket fits a 600ml water
bottle. Internal sleeve is felt-lined. Magnetic top
closure. Weighs 480g empty.
Buyer: A 32-year-old hybrid worker who carries a laptop
between home and a co-working space twice a week.
Currently uses a backpack but wants something that
looks presentable in client meetings.
Top objection: "Will it actually fit my MacBook
without scratching?"
Tone: Warm, confident, no superlatives, no exclamation
marks. Sentences vary in length — mostly short.
Structure (return exactly this):
1. Headline (≤ 8 words, lead with the felt benefit)
2. Sub-headline (one sentence, name the buyer scenario)
3. Body paragraph (60–80 words, use FAB on the 3
most important features)
4. Bullet list of 5 specs (factual, no marketing words)
5. One-line reassurance addressing the objection above
Avoid the words: "stylish", "elegant", "modern",
"premium", "perfect", "ultimate".The output will read like real product copy: "Headline: Looks like a tote, carries like a workhorse." followed by a short scenario sentence, a 70-word FAB-driven paragraph, clean spec bullets, and a closing sentence such as "The felt-lined sleeve is sized for the 14-inch MacBook Pro, with 3mm of give on each side." — directly answering the objection.
Tip: After AI writes the description, paste it back and ask: "Now rewrite this for a buyer who is price-sensitive and cares more about durability than aesthetics." One prompt, two audience versions, ready for A/B testing.
Pick a product you own and love. Brief AI using the structure above. Compare the output to the description the brand actually uses on their site. Notice which version makes the benefit feel more real.
Take one short product description you already have and ask AI:
Rewrite this in three voices — luxury British heritage, friendly indie brand, and minimalist tech.Look at how much voice alone changes the perceived value of the same product.
Ask AI to write a 30-word "scannable" version and a 120-word "story" version of the same product description. Use the short version on collection pages and the longer version on the product page.
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