Who makes Kirkland Signature Hydrocortisone Plus Maximum Strength (Hydrocortisone 1% Cream)?
As of August 30, 2026, evidence points to Perrigo as the manufacturer of Kirkland Signature Hydrocortisone Plus Maximum Strength (Hydrocortisone 1% Cream), but no tier 1–3 source names the link directly.
The common claim
What’s commonly claimed, and what the evidence supports
Online answers, including AI answer boxes, most often credit Perrigo as the maker, usually by borrowing from FDA records that tie Perrigo to Kirkland's ibuprofen and minoxidil and from Perrigo's Allegan, Michigan address on those cartons. For this product the FDA route is empty: Kirkland Signature Hydrocortisone Plus is an over-the-counter monograph drug (identifier M017) whose label names only Costco Wholesale, with no ANDA applicant to trace and no 'manufactured by' or 'distributed by' third party on the carton. What does name a maker is Costco's own catalog data: as of August 2026, Costco's product-listing data for the four-pack (item 11893977) carries "L Perrigo Company" in its manufacturer field, so evidence points to Perrigo, the largest US maker of private-label OTC drugs. That field is an internal catalog entry that can name a supplier-of-record rather than the plant, and nothing at tiers 1-3 exists for a monograph drug to corroborate it, which is why the attribution is probable rather than confirmed. Taro Pharmaceuticals and Padagis, the other major US makers of store-brand topical hydrocortisone, are occasionally floated as well, with no evidence behind either.
Evidence & sources
Each source is graded on the six-tier evidence rubric, where tier 1 is strongest. Sources are archived, so a citation still works if the original page moves or goes behind a paywall.
Tier 4
Costco's Business Delivery storefront (costcobusinessdelivery.com) serves the same US catalog data as costco.com and, unlike costco.com, can be fetched and archived. Its page for this item ('Kirkland Signature 1% Plus Hydrocortisone Cream, 2 oz, 4 ct', item 11893977) embeds catalog JSON whose manufacturer field reads mfName: "L PERRIGO COMPANY", L. Perrigo Company being Perrigo's principal US operating company (Allegan, MI). Read on August 30, 2026 and verified present in the Wayback snapshot created the same day. An internal catalog field rather than an editorial statement, and such fields can name a supplier-of-record rather than the plant. Here it is the sole route that names anyone: the cream is an FDA over-the-counter monograph drug (identifier M017) with no ANDA applicant to resolve, its FDA label names only Costco Wholesale, and no recall or press report names a maker (the search is documented in this record's open data). Under the rubric, Costco's manufacturer field as the sole route caps at probable (the same rule applied to Kirkland cream cheese); the FDA route that would corroborate it does not exist for a monograph drug, so there is nothing at tiers 1-3 to close the attribution. The value passes the sanity check: Perrigo is the largest US maker of private-label OTC drugs and FDA records tie it to Kirkland's ibuprofen, minoxidil, acid reducers and nicotine products.
Frequently asked
Who makes Kirkland Signature Hydrocortisone Plus?
Is Kirkland Hydrocortisone Plus made by Perrigo?
Is Kirkland Hydrocortisone Plus the same as Cortizone-10?
Was Kirkland hydrocortisone cream ever recalled?
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