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Cryo Human Leukopak (5.0 Billion Cells)

Catalog #: 260260.01

Cryopreserved human leukapheresis product collected from normal peripheral blood, containing ≥5.0 billion cells.


Request Information or Quote or contact Lonza CellBio Services to discuss standard or custom production requests or to obtain more information.


Product Overview

A leukopak is a highly-enriched leukapheresis-derived product obtained from an IRB-approved collection facility. Leukopaks contain higher concentrations of mononuclear cells, B cells, T cells, stem/progenitor cells, dendritic cells, and other cell types as compared to standard venipuncture collection methods or buffy coat products.

The total volume and concentration of the supplied cells will vary. Based on this count, the product is filled to deliver not less than 5.0 billion cells upon thaw.

Leukopaks typically contain up to 50% T cells, 20% monocytes, 10% B cells, and 10% NK cells, 3% granulocytes, and 3 % hematocrit. Actual percentages will vary from donor to donor.

Cyropreserved leukopaks are frozen quickly after collection using a controlled rate method to maximize viability.

Additional shipping charges apply for cryopreserved leukopaks.

Contact CellBioServices@lonza.com for additional information or to place an order.


  • Post thaw viability >95%
  • guaranteed minimum quantity of MNCs from a single donor
  • higher concentration of leukocytes compared to buffy coats
  • IRB-approved donor management and collection process

Content & Storage


1 collection bag containing ≥5.0 billion cryopreserved cells

Safety Data Sheets (SDS)

Certificate of Analysis (CoA)

Please enter Lot Number, including all zeros, located on the product label and please take into account that it is case sensitive.