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How to Write Product Descriptions That Sell (and Stay Truthful)

A step-by-step method for writing online product descriptions that answer buyers’ questions, turn features into benefits and avoid claims you cannot support, with templates and a checklist.

A handmade grey ceramic mug on a wooden table

This guide is for the person writing product pages without a copywriting team: the potter listing 40 mugs on an online shop, the small skincare brand launching its first range, the retailer whose product pages still carry the manufacturer’s dry specification text. A product description has one job: give a shopper enough confidence to buy, or to decide quickly that this is not for them. Good ones answer questions before they are asked. They also stay within what you can prove, which in many places is a legal requirement as well as good business.

What a buyer needs from a product page

A shopper looking at a product online cannot pick it up. The description replaces the conversation they would have with a helpful shop assistant. Most buyers want answers to the same questions:

  • What is it, and who is it for?
  • What will it do for me?
  • What is it made of, how big is it, and how does it work?
  • Will it suit my situation (size, compatibility, skin type, space)?
  • What happens if it is not right?

Write down the five to ten questions customers ask you most often, by email, at markets or in reviews. Those questions are your outline.

Step 1: write for one buyer

Describe the most likely buyer in one sentence: “Someone buying a gift for a coffee-loving friend, who wants it to feel handmade and arrive safely.” Every line of the description should help that person decide.

A description written for everyone tends to sound like a list of adjectives. A description written for one person sounds like advice.

Step 2: turn features into benefits

A feature is a fact about the product. A benefit is what that fact does for the buyer. Strong descriptions pair the two.

FeatureBenefit
350 ml capacityHolds a large latte without refills
Dishwasher-safe glazeGoes straight into the dishwasher after breakfast
Wide, flat baseLess likely to tip on a crowded desk
Hand-thrown stonewareEach mug is slightly different, so no two gifts are identical
Recycled cardboard packagingArrives protected, with packaging that can go in household recycling

Keep the feature in the copy as well. Benefit language persuades; the specific fact makes it believable.

Step 3: be specific

Vague words such as premium, high-quality and amazing tell the buyer nothing. Specific details do the persuading:

  • Vague: A high-quality, durable backpack perfect for every adventure.
  • Specific: A 22-litre daypack in water-resistant recycled nylon, with a padded sleeve that fits a 15-inch laptop and two side pockets for water bottles.

The second version lets a buyer check whether their laptop fits, which removes a reason not to buy. The product details above are an example.

Every adjective in a product description should be replaceable by a fact. If it cannot be, ask whether it needs to be there.

Step 4: stay within what you can prove

In the United States, the Federal Trade Commission’s advertising guide for small business states three core rules: advertising must be truthful and not deceptive, advertisers must have evidence to back up their claims, and ads cannot be unfair. Product descriptions on a shop website are advertising.

The FTC guide makes several points that apply directly to product copy:

  • Implied claims count. The FTC looks at express claims and implied ones. Its example: “kills the germs that cause colds” implies the product prevents colds, and the advertiser needs proof of that.
  • Evidence comes first. Advertisers must have a reasonable basis for claims before the ad runs.
  • Customer letters are not enough to support claims that need objective evaluation, such as health or safety claims.
  • Catalogue sellers have a duty too. If you sell other companies’ products, the FTC says you should ask for material backing up the manufacturer’s claims rather than repeating them, and avoid embellishing them.
  • Subjective claims get less attention. Claims shoppers can judge for themselves, such as “tastes great”, are treated differently from claims they cannot easily check, such as energy savings.

Other countries have their own rules, but the practical approach is universal: if you would struggle to show evidence for a claim, rewrite it.

Claims to handle with care

  • Health, safety and medical benefits
  • “Eco-friendly”, “biodegradable” or “sustainable” (the FTC has separate guides on environmental claims)
  • “Made in” claims
  • Comparisons with competitors
  • Numbers: “lasts twice as long”, “saves 30% on energy”

Step 5: structure for scanning

Most shoppers scan. A structure that works for many products:

1. Opening line: what it is and who it is for, in one sentence.

2. Short paragraph: the main benefit and the feeling of using it.

3. Bullet list: key features with benefits.

4. Specifications: dimensions, materials, care, compatibility.

5. Reassurance: delivery, returns, guarantee terms.

The FTC guide notes that if an ad mentions a guarantee or warranty, it should clearly disclose how to get the details and any conditions, such as time limits.

A worked example

Before (manufacturer copy): Ceramic mug. Stoneware. 350 ml. Dishwasher safe. Blue glaze.

After:

A generous hand-thrown mug for slow mornings, glazed in deep sea blue.

Each mug is thrown on the wheel in our studio, so the shape and glaze vary slightly from piece to piece. It holds 350 ml, enough for a large latte, and the wide base keeps it steady on a desk.

  • 350 ml capacity
  • Dishwasher and microwave safe
  • Height 10 cm, diameter 9 cm
  • Packed in recycled cardboard with paper padding

Not quite right? Return it unused within 30 days for a refund; see our returns page for details.

The studio, dimensions and returns policy are illustrative; use your own real details.

Writing descriptions at scale

If you have hundreds of products, write a template for each product type with the questions it must answer, then fill in the specifics. Avoid copying one description across similar products with only the colour changed; shoppers and search engines both see that as thin.

Product pages and search

Product pages compete in search results with every other shop selling something similar. Two habits help without resorting to keyword stuffing.

  • Name the product the way buyers search. “Hand-thrown blue stoneware mug, 350 ml” is more useful in a title than “The Ocean Mug”. You can keep the creative name, but put the descriptive words alongside it. Google’s title link guidance recommends descriptive, concise titles and warns against repeated or boilerplate text.
  • Write a unique description for each product. Google’s snippet documentation makes the same point for meta descriptions: identical text across many pages does not help searchers tell them apart.

Common mistakes

Copying the manufacturer’s text

It is often dry, sometimes inaccurate, and identical to every other shop selling the same item.

Burying key facts

Size, compatibility and materials belong near the top or in a clear specifications block, not in the fourth paragraph.

Overclaiming

“The best mug you’ll ever own” is puffery most shoppers ignore. “Clinically proven to reduce stress” is a claim that needs evidence.

Forgetting the photos

Descriptions and images should agree. If the text says navy and the photo looks black, expect returns.

Product description checklist

  • One-sentence buyer description written first
  • Customer questions answered in the copy
  • Each feature paired with a benefit
  • Vague adjectives replaced by specific facts
  • Every objective claim backed by evidence you hold
  • Manufacturer claims checked, not just repeated
  • Scannable structure: opening, paragraph, bullets, specs, reassurance
  • Guarantee or returns terms stated clearly
  • Copy and photos consistent

Takeaway

A good product description answers a buyer’s questions, links each feature to a benefit and replaces vague praise with specific facts. Keep every claim within what you can support, structure the page for scanning, and make returns and guarantees clear. That combination earns sales and keeps them.

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