How long should an SEO product description be?

For most products, 150–300 words of on-page description plus five benefit bullets is enough. Length is not a ranking factor on its own — a 200-word description that answers real buyer questions will outrank a padded 800-word one. Write until the obvious questions are answered, then stop.

Where should I put my keyword in a product description?

Once in the SEO title (as close to the front as reads naturally), once in the meta description, once in the first sentence of the on-page description, and once in a subheading or bullet if it fits. Beyond that you are repeating yourself, which reads badly and no longer helps.

Does duplicate manufacturer copy hurt Shopify SEO?

Yes. If you use the manufacturer's supplied description, your page is one of dozens of identical pages competing for the same term, and search engines have no reason to prefer yours. Rewriting supplier copy in your own words is usually the single highest-impact SEO fix for a dropshipping or reseller catalog.

How to Write SEO Product Descriptions That Rank and Convert

An SEO product description has two jobs that pull against each other. Search engines need enough specific, crawlable text to understand what the page is about. Shoppers want to know whether the thing fits, works, and is worth the money — and they want that in about eight seconds.

Most advice optimises for one and quietly sacrifices the other. Keyword-stuffed copy ranks briefly and converts terribly. Beautifully written brand copy converts well for the few people who find it and never ranks. Here is the structure that does both.

Start With the Question the Searcher Actually Typed

Before writing a word, look at what someone searching for this product actually wants to know. "Merino wool base layer" is a different intent from "merino wool base layer for skiing" — the second one is asking, implicitly, whether it works in cold and whether it manages sweat.

Your description should answer the implied question in the first two sentences. This matters more in 2026 than it used to: AI answer engines extract a page's core answer from the opening section, and if the answer is buried below three paragraphs of brand storytelling, it may never get surfaced at all.

Write the Five Fields, Not Just the Paragraph

A product page needs five distinct pieces of text, each with a different job:

Field	Length	Job
SEO title	Under 60 characters	Match the search term, front-loaded
Meta description	Under 155 characters	Earn the click from the results page
On-page description	150–300 words	Answer the buying questions
Benefit bullets	5 bullets	Scannable outcomes, action verbs
Alt text	Under 125 characters	Describe the image factually

Skipping the SEO title and meta description is the most common gap. Shopify will fall back to your product title and a truncated description, which is almost never what you would have written deliberately.

Use Specifics, Because Specifics Are What Rank

Vague copy has no keywords in it. That is the mechanical problem with "elevate your everyday routine" — there is nothing in that sentence a person would ever search for.

Specific copy is naturally keyword-rich because the specifics are the search terms:

"220gsm merino wool, flatlock seams, machine washable on cold" contains four things people search for. "Premium comfort you'll love" contains zero.

Materials, dimensions, weight, compatibility, care instructions, and use case all double as ranking signals and as the exact facts a buyer needs before adding to cart.

Structure for Scanning, Not for Reading

Almost nobody reads a product description top to bottom. They scan for the one thing they are unsure about — sizing, shipping, material, compatibility.

Short paragraphs (two to three sentences), bullets for anything list-shaped, and bold on the specific terms people scan for. This is not a style preference: readability correlates with rankings because it correlates with people staying on the page.

Write Benefit Bullets, Not Spec Bullets

A spec bullet says what the product is. A benefit bullet says what happens because of that spec. Both matter, but the benefit version converts better and reads less like a datasheet.

Spec: "Built-in filter cone"
Benefit: "Brews a full cup in under 4 minutes — no paper filters to buy"

Start each bullet with a verb. Keep them roughly the same length so the block scans cleanly.

Never Ship Manufacturer Copy Unchanged

If you resell, the supplied description is on every competitor's site too. Search engines have to pick one of those identical pages to rank, and there is no reason it will be yours.

Rewriting supplier copy in your own words — with your own specifics and your own tone — is usually the highest-leverage SEO work available to a reseller catalog. It is also the most tedious, which is exactly why it tends not to get done.

Then Actually Measure It

Give a change four to eight weeks before judging it. Track rankings for the target term, organic traffic to the specific page, and add-to-cart rate on that page. If traffic rose but conversion fell, you optimised for the wrong search intent — the visitors are arriving with a different question than the one your page answers.

Where This Gets Hard

None of the above is difficult for one product. It is difficult for four hundred, which is the actual constraint for most stores — and why so many catalogs end up with three great descriptions and 397 placeholder ones.

Wrivo AI generates all five fields in one pass — SEO title, meta description, on-page description, benefit bullets, and alt text — in three tone variations, and publishes straight to the Shopify product page. Free plan, no credit card.