Single Donor Human Complement Serum

Human Complement Serum is a complex mix of serum proteins which are activated sequentially when antibodies in blood with immunity interact with the corresponding antigens. Complement proteins will quickly degrade if the serum is not prepared and stored correctly. Our complement-preserved serum is freshly collected aseptically and kept cold, and then flash-frozen to prevent degradation of complement activity. We do not recommend this product be thawed for aliquoting, but we are able to accommodate custom volumes and aliquots upon request.

Viral Testing
Each unit is tested for the standard FDA-required viral markers, and found negative for HBsAg, HCV, HIV-1, HIV-2, HIV-1Ag or HIV-1 NAT, ALT, West Nile Virus NAT, Zika NAT and syphilis using FDA-approved methods. If you would like any further testing or analysis performed prior to shipping, please let us know.

Donor Specifications
We have a wide network of FDA-approved collection centers across the United States, which allows us to collect from nearly any donor type. We are able to accommodate demographic requests from a variety of genders, races, and ages. We are also able to work with custom collection requests and protocols. If you have custom demographic or collection requests, please let us know.

Please contact us at for specific academic pricing.