Counterfeit products sold under the KEIFEI name are circulating through unauthorized websites and resellers. This page documents the difference between official KEIFEI and counterfeit sources — so your sourcing decisions are based on fact.
Every column below is verifiable. If your current supplier cannot meet every item in the left column, the product origin is not official KEIFEI.
keifeipharma.com is an unauthorized website selling product under the KEIFEI name without any affiliation, license, or authorization from KEIFEI Pharma Co., Ltd. It is not operated by the manufacturer. We cannot verify the origin, purity, or safety of any product purchased there.
Every authentic KEIFEI injectable has five verifiable markers. If any one is missing or inconsistent, the product is not from our facility.
Aluminium crimp cap embossed with the KeiFei® wordmark. Cap colour is product-specific. Fakes show a plain cap, the wrong font, or blurred print.
KF-prefixed and machine-printed with manufacture date and expiry. Handwritten or missing lot numbers are non-genuine.
Counterfeit product cannot be linked to a controlled production batch. No lot number means unknown origin.
Hexagonal honeycomb pattern, KeiFei® wordmark and QR code. The box lot must match the vial lot exactly.
Missing or generic Certificate of Analysis. A real KEIFEI COA names your exact batch lot and its HPLC result.
Embossed on the aluminium crimp cap. Fakes: plain or blurred print.
KF-prefixed, machine-printed with dates. Handwritten or missing = non-genuine.
Cannot be linked to a controlled production batch. No lot = unknown origin.
Hexagonal pattern with a lot number matching the vial exactly.
Generic or absent Certificate of Analysis.
A genuine KEIFEI product matches on every point above — lot number, embossed cap, branded box, and a lot-matched Certificate of Analysis. If anything is missing or inconsistent, it did not come from the KEIFEI facility.
View the catalogue →KEIFEI operates only the domains listed below. If you find KEIFEI products sold under any other website or seller, it is counterfeit and not associated with our facility.
These are the only official websites representing our organization. Any other site using the KEIFEI name is not authorized.