Who makes Kirkland Signature Ultra Shine Liquid Dish Soap, Fresh, 90 fl oz?
As of July 5, 2026, the manufacturer of Kirkland Signature Ultra Shine Liquid Dish Soap, Fresh, 90 fl oz is KIK International LLC, per on-label, first-party, or executive statement evidence.
The common claim
What most answers say — and what the evidence supports
Top-ranking answers either lump Kirkland dish soap into the Huish/Sun Products/Henkel story told about Kirkland laundry detergent or admit the maker is undisclosed (one content mill guesses Kutol Products; Reddit threads guess Dawn's maker P&G). Costco's own posted safety data sheet settles it: Kirkland Signature Ultra Shine dish soap is manufactured by KIK International, per the manufacturer address on the SDS revision Costco has posted since January 2024. Henkel did sell a retailer-brands dishwash business to First Quality in April 2025, but no evidence ties that unit to this KIK-made product.
Evidence & sources
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Tier 4
The SDS Costco posts on its own customer-service site for the 90 fl oz fresh-scent Ultra Shine dishwashing liquid lists 'Manufacturer Address: KIK International LLC, 1725 North Brown Road, Lawrenceville, GA 30043' alongside Costco as supplier of the data sheet - an explicit manufacturer naming for this exact product, in Costco's own posted disclosure, current as of the 2026-07-05 access date. KIK International (headquartered in Concord, Ontario) is one of North America's largest private-label household-chemicals manufacturers.
Tier 4
Context for how recent the disclosure is: the prior-generation SDS for the same 90 fl oz fresh-scent dishwashing liquid (revision 2022-11-01) lists only 'Supplier Address: Costco Wholesale Corporation' with no manufacturer field. The KIK manufacturer address first appears in the January 2024 revision - i.e., the naming is Costco's own current, deliberate disclosure, not a leak or a stale document.
Frequently asked
Who makes Kirkland Ultra Shine dish soap?
Is Kirkland dish soap the same as Dawn?
Is Kirkland dish soap made by the same company as Kirkland laundry detergent?
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