#14
of 30 stores measured
The index › the United States › Hair care › Costco
Costco in the Krillo Index
When shoppers in the United States ask ChatGPT and Gemini where to buy hair care, is Costco named? This is the answer from our latest monthly measurement, November 2026.
5/35
buying questions where AI names it; the category median is 2
0
questions where AI recommends it outright
Measured with ChatGPT and Gemini, the same questions for every store in this category, asked in the language of the market. Read how we measure.
Around Costco
See the full ranking for Hair careWhat AI says about Costco
“Instacart, can deliver hair products from nearby pharmacies, beauty stores, Target, Costco, etc., often fastest for urgent needs So: Amazon Prime is generally the fastest nationwide online retailer; Instacart, Target/Shipt, or local...”
ChatGPT, asked: which US online store delivers hair care products the fastest?
“Costco / Sam’s Club, lowest per-ounce pricing for large salon or family-size bottles, but requires membership and larger upfront spend.”
ChatGPT, asked: which US webshop has the cheapest shampoos and conditioners?
“Best Cost-Per-Ounce (Bulk / Club): SamsClub.com or Costco.com If you have a membership, warehouse clubs offer the cheapest price per fluid ounce for name brands.”
Gemini, asked: which US webshop has the cheapest shampoos and conditioners?
Quoted word for word from the answers in our measurement. What AI says about your store decides which buying questions it names you for.
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