The Ordinary

Name: The Ordinary on the ARC Index
Creator: ARC

WHAT GROK TOLD A SHOPPER

One AI model's read-back recommended this.

Checked 7 Oct 2026. One AI model's read-back (currently Grok via API, not the consumer Grok app). One model, not a consensus.

Tested product: Niacinamide 10% + Zinc 1%. Product page · Store

Score

of 100 · 4 of 5 shoppers added to cart

Browser shoppers

4 of 5

Browser cart shoppers that added the product to the cart. The score is this lane. The catalog check does not change it.

Tested 6 Oct 2026. How ARC tests

CAN AGENTS BUY

No agent catalog found in this check. 4 of 5 browser cart shoppers added the product to the cart. The rest get stuck at adding the product to the cart.

AGENT CATALOG · REAL

No agent catalog.

ARC BROWSER CART TESTS

4 of 5 added the product to the cart. Stuck at adding the product to the cart.

Expose a catalog agents can query over HTTP. On Shopify, enable search_catalog or search_shop_catalog at /api/ucp/mcp or /api/mcp and publish the /.well-known/ucp profile.

View or refresh the free agent checkout check for theordinary.com →

GROK · REAL MODEL

One AI model's read-back recommended this.

Checked 7 Oct 2026. One AI model's read-back (currently Grok via API, not the consumer Grok app). One model, not a consensus.

Model x-ai/grok-4.20

This effective bestseller controls oil and refines pores well for most at low cost. Choose it over alternatives for simplicity and value unless seeking added actives.

Rivals one model named: Paula's Choice 10% Niacinamide, The Inkey List Niacinamide, La Roche-Posay Niacinamide

MOST COSTLY MISMATCH

One AI model's read-back says your price is $8.81 USD. Your site says $6.

Fact	Check	The model said	Store page
Price	Mismatch	$8.81 USD	$6schema.org JSON-LD"price":"6.00"Source page
Returns window	Grok didn't know	—	—
Shipping cost	Couldn't verify	calculated at checkout	—
Availability	Match	in stock	in stockProduct pagew=900&sh=900&sm=fit"],"offers":{"@type":"Offer","url":{},"availability":"http://schema.org/InStock","priceCurrency":"USD","price":"6.00","shippingDetails":[{"@type":"OfferShippinSource page
Delivery estimate	Grok didn't know	—	—

Sources Grok cited

Each shopper

The failure

Couldn't add it to the cart

This stopped 1 of 5 agents.

Top fix

Use a real Add to cart button, and show that the item landed in the cart.

History

6 Oct 202679/100 · browser 4 of 5 · Couldn't add it to the cart
5 Oct 202679/100 · browser 4 of 5 · Couldn't add it to the cart

Your store hub →

Is this your store?

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OpenClaw only follows labelled controls. A block at the door is one result for all five, with the HTTP evidence. The score is the ARC browser cart, the same number as a free scan. The agent-catalog check above is real and leads the buy verdict. It does not change the score. How it works.

BADGE FOR YOUR SITE

Put this on your site. It links back here. It says Agent checkout when the real catalog check returned a checkout link, and Agents chose us only when a browser cart shopper added the product to the cart.

The Ordinary on the ARC Index. Agents chose us. ARC score 79. No agent catalog found in this check. 4 of 5 browser cart shoppers added the product to the cart. The rest get stuck at adding the product to the cart.

<a href="https://www.arcreport.ai/agent-index/the-ordinary"><img src="https://www.arcreport.ai/agent-index/the-ordinary/badge" width="360" height="72" alt="The Ordinary on the ARC Index. Agents chose us. ARC score 79. No agent catalog found in this check. 4 of 5 browser cart shoppers added the product to the cart. The rest get stuck at adding the product to the cart."></a>

Want a re-test, or this page removed? Contact ARC or email hello@arcreport.ai.