There's a pattern in e-commerce that wastes more time than any other single workflow.
Founder opens ChatGPT. Types "write a product description for my [product]." Gets 150 words of filler. Spends 20 minutes editing out the adjectives. Publishes something mediocre. Wonders why their conversion rate is flat.
The problem is the prompt, not the AI.
What a product description is actually supposed to do
Before we get to the prompt: most product descriptions fail before the AI is even involved, because the seller doesn't have a clear answer to four questions:
- Who is reading this? Not "everyone who buys candles." The specific customer — demographics, context, what they're trying to achieve or feel.
- What is the lead benefit? Not a feature. The outcome the customer cares about.
- What's the voice? Premium and minimal? Playful and irreverent? Warm and personal?
- What's the constraint? Word count, what to avoid, what not to say.
If you don't know those four things before you open the AI, you're not going to get a description worth using. You're going to get a generic draft that matches your vague brief.
The prompt structure that produces usable copy
Here's the prompt I use for product descriptions. It's in the AI Prompt Pack for E-Commerce as Prompt #1, and it's the template I run on every new product listing:
You are a DTC copywriter for [BRAND CATEGORY — e.g., "premium home goods" or "performance athletic wear"]. You write product descriptions that lead with benefit, not feature. Your tone is [ADJECTIVE, ADJECTIVE — e.g., "clean and confident" or "warm and slightly irreverent"].
Product: [PRODUCT NAME]
Key details: [2-3 sentences about what it is, what it's made of, what makes it different]
Customer: [WHO IS BUYING THIS AND WHY — be specific: "Women 30–50 who are furnishing a home for the first time and care more about quality than trend"]
Primary benefit (lead with this): [THE OUTCOME, NOT THE FEATURE — e.g., "sleep that actually recovers you" not "100% merino wool"]
Write a product description: 120–160 words. Lead with the primary benefit in the first sentence. No vague adjectives (premium, luxurious, high-quality). No passive voice. End with a concrete use-case sentence that helps the customer picture themselves using it.
Run that with your actual product details and you'll have something worth editing. Not something worth deleting.
The three mistakes that produce bad product descriptions
1. Starting with features instead of benefits
"Made from 100% organic cotton with reinforced stitching and a relaxed fit."
Nobody buys a fabric. They buy comfort, confidence, or longevity. Lead with what the customer gets, not what you made.
2. Vague adjectives
"Premium quality. Luxurious feel. High-end craftsmanship."
These phrases mean nothing because every brand says them. If your product is genuinely good, say something specific. "Stitched to survive 200+ washes" is more credible than "premium quality" and takes the same number of words.
3. Writing to everyone
If your customer is "anyone who likes candles," your description will read like it was written for no one. Pick the most likely buyer and write for them. Everyone else who's a fit will recognize themselves in it. Everyone who isn't won't buy regardless of how broad your copy is.
One more thing the prompt does that matters
The prompt above assigns the AI a role: "DTC copywriter for [brand category]." This isn't decoration — it changes the output significantly.
When you tell the AI it's a copywriter for premium home goods, it activates a different set of writing patterns than if you just say "write a product description." The AI defaults to the specific vocabulary, tone conventions, and structure of that role.
This is the single highest-leverage thing you can add to any AI prompt: a specific expert role with a specific domain. "You are a [specific expert] for [specific type of company]" before any writing task.
The abandoned cart prompts, ad copy prompts, and customer service prompts in the pack all use this same structure.
The full pack
This prompt is one of 50 in the AI Prompt Pack for E-Commerce — built to cover every writing task a Shopify, Etsy, or Amazon seller handles week-to-week.
50 prompts. 5 categories. PDF + Markdown format.
Each prompt includes the prompt itself, an example output, and a customization tip — the thing that makes the prompt actually work for your brand versus any other.
$19. Use them forever.
If the product description prompt above produces something generic even after filling in your details, leave a comment. The customization tip in the full pack (Prompt #1) usually fixes it — but I'm happy to debug here too.
