Kent Laboratories Inc. is a biotechnology manufacturer based in Bellingham, Washington, specializing in human in vitro diagnostic products based on various forms of polyclonal antibodies. The company has been serving manufacturers, universities, and laboratories since 1974 and offers a product portfolio that includes RID plates and kits, FITC conjugates, immunoglobulins, complement components, acute phase proteins, and control serum. Official company information also states that Kent Laboratories is an FDA-registered facility operating under current Good Manufacturing Practices. 

■ Product Portfolio

Vicbio Biotechnology Co., Ltd. provides the full range of Kent Laboratories products.

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●Radial Immunodiffusion (RID) Kits

RID kits include standards, a standard curve reference chart, instructions for use, and three 24-well agar plates. Components are individually sealed, and reference tables are supplied to help convert precipitation ring diameters into concentration values. Kent Laboratories officially lists RID Kits and RID Plates Only as a core product category. 

●Acute Phase Proteins

Acute phase proteins are proteins whose plasma concentrations change in a characteristic manner during inflammation. This product category supports related diagnostic and research applications, and is listed by Kent Laboratories as one of its core offerings. 

●FITC Conjugates and Immunoglobulin Products

Kent Laboratories offers FITC-conjugated antisera and immunoglobulin-related products, including examples such as IgG-FITC, Albumin-FITC, C1q-FITC, and other conjugates used extensively by researchers and clinical laboratories. The official website lists FITC Conjugates and Immunoglobulins as dedicated product categories. 

●Complement Components

Complement component antisera are prepared using purified antigens from normal serum and produced in host animals such as goat, rabbit, sheep, and donkey. According to Kent Laboratories’ product information, these products are purified through affinity-based adsorption approaches to help ensure high specificity and avoid interference in sensitive detection workflows. Product specificity and titer are validated batch by batch. 

●Control Serum

Kent Laboratories provides control serum products for titer testing of analytes such as IgG, IgA, IgM, C3 complement, α2-macroglobulin, C3 proactivator precursor, α1-antitrypsin, ceruloplasmin, antithrombin III, transferrin, and haptoglobin. Control Serum is also listed as one of the company’s standard product categories.

■ Product List