You sell one thing in five strengths, and have to decide whether your store sells one product or five. It looks like admin housekeeping. What it settles is what a shopper sees before she clicks, and whether your reviews sit in one pile or five.

A merchant setting up a new Shopify store put it to r/ecommerce on 5 August 2026: a part rated to 70 kg comes in ten lengths, so ten products, or one product with ten variants? He argued both ways himself — "posting each length as a separate product might make the website look more messy/unorganized, but it might be easier for customers to find the right product through Google if each length has its own product page." He never tested that, and neither did anyone in the thread.

Two supplement stores have made opposite calls on one narrow part of it. Both sell vitamin D, and both split the wider catalogue by format and by audience — gummies, capsules, children's versions, K2 combinations. What they decided differently is how to sell the same softgels (or sprays) in different strengths.

One tile, four pills

On Nutricost's vitamins collection, 47 products deep, the entire four-strength softgel line costs a single tile: a bottle photo, the title "Nutricost Vitamin D3 Softgels", one price of $14.97, four and a half stars and "101 reviews". Scanning that grid, a shopper cannot see that 2000, 5000 and 10000 IU exist. The store's own search results for vitamin D return at least ten products beyond it — Vitamin D3 Gummies at $15.97, Kids Vitamin D3 Gummies at $14.97 — each with a tile of its own and the strength in the title.

One tile for four strengths, beside single-product tiles. Captured 15 August 2026, desktop rendering; prices and counts match the 14 August record.

You only discover the other strengths after clicking — below the title, the rating, a "3 sold in last 6 hours" line, the price and a subscription box. A label reads "SIZE: 1000 IU", only the word SIZE: in grey, and beneath it four pill buttons — 1000, 2000, 5000, 10000 IU — all visible at once. Load the page on 10000 IU and three things move: price to $18.97, label, highlighted pill. The heading carries no strength, and the review count stays at 101, one body of reviews serving all four.

Five tiles, and a block that explains them

BetterYou, pricing in pounds, sells the equivalent ladder as five separate products. On its Vitamin D Supplements collection, 18 products deep, the five plain D3 sprays visible on the first sixteen tiles carry their own price and their own reviews: the 3000 IU at £9.49 with 663 reviews, the 4000 IU at £9.99 with 169, and the other three between £7.49 and £7.99. Every strength is in the title, so a shopper can tell them apart before clicking.

The same ladder as separate products — every strength, price and review count visible before the click. Captured 15 August 2026, desktop rendering.

The product page then does something that looks like a variant selector and is not. Under the price on the 4000 IU page sits a row labelled "Dosage: 4000 IU" with three photo tiles — 1000 IU, 3000 IU, 4000 IU — each labelled beneath the number, "Maintenance" under 3000 IU and "Max Strength" under 4000 IU. The first two link to other product pages; the current one is not a link. Click a dosage and you land on a different product with its own heading, its own £7.99, its own 174 reviews. On BetterYou the dosage row greets you before the subscription pitch; on Nutricost the strengths wait until after it.

It is how this store handles a range generally: the magnesium spray page carries the same row, labelled "Type: Original", across five formulas, each tile linking to its own product page. Shopify's native way of splitting products while keeping them linked, the Combined Listings app, runs only on Plus and enterprise plans and free themes from 15.0.0, so on Basic or Grow that row is theme code.

Splitting the range does not remove the choice; it moves the choice onto the grid, and the grid has to carry it. Beneath the grid sits a router headed "Which Vitamin D Supplement do I Need?", sorting the range by job rather than number — daily maintenance, higher strength support, bone health support, child-friendly doses, vegan-friendly — every line a link to a separate product page. That block does work Nutricost's four pills do for free.

What the split asks in return: the store merchandises the choice the grid now carries. Captured 15 August 2026.

Where the choosing happens

In the five threads we read for this piece, not one merchant reported a lost sale. This is a decision about what a buyer can find and compare, and any conversion number attached to it would be invented.

What the pages show is where each store put its options. Four things to check against your own range:

The first row overrules the other three, and the last section shows you how to answer it.

A paint supplier asked Shopify's community forum on 27 July 2026 for "dependent product variants so that incompatible options are hidden when it comes to car paints". Shopify's documentation is where it meets its limit: a product carries up to three options, the variant picker shows which combinations do not exist rather than hiding them, and hiding them takes an app or theme code.

The rule

Split when each option needs a page of its own to be found on. Keep the variants when the options only need to be seen next to each other.

A split gives each option a landable page, its own price on the grid and its own reviews. A variant group gives one page where the options can be read against each other.

BetterYou tests this rather than flattering it. Its strengths differ only in how much — the condition under which the degree test says keep them together — and it split them anyway. What the split gives each strength shows on the grid: a title carrying the number, a price, and a review count that never appears beside its neighbours, 663 on the 3000 IU spray and 169 on the 4000 IU. What it asks in return sits directly beneath: the router and its five job groups. Nutricost owes neither. Four pills in one row, one price, 101 reviews covering the range.

Our guess at why: a shopper already given a number is served by a page built around that number, and a shopper still working out which number is served by seeing the strengths together. Nobody counted who arrives at either store.

So the kind-versus-degree test — do the options differ in what they are, or only in how much — is not the test these two stores followed. Both split by format and audience. They parted on one thing — the same product in different strengths — and on where those strengths had to be visible.

Do this today

Open your best seller and walk it in the order a shopper meets it. On the grid: does the tile show that the other options exist? On the page: how far down is the selector, and what does she scroll past to reach it? Then read your site search terms and the searches Google says brought people to that product page. If people type the option name before they ever see your grid, those options are sharing one page that each of them deserves — split them. If nobody types it, they are being compared on your page, and the selector belongs where the comparing happens. No traffic yet, as with that Reddit merchant? Then there are no search terms to read, and the answer comes from competitors' titles and a keyword tool.

Bring the product link to the community with one line on what people type to find it, and that is usually the fastest way to get a second opinion on it.

Sources:

Storefronts, captured 14 August 2026.