Fresh and Frozen Leukopaks

Representative cell viability data from 4 fresh leukopaks

Fresh human leukopaks
Our fresh leukopak service provides our customers across Europe with access to fresh leukopaks within 24 hours of collection.

We focus on providing our clients with top-quality leukopaks, backed up by outstanding customer service.
We ensure that customers receive a fresh leukopak from the ideal donor for their research, delivered on-time to their location wherever it is throughout Europe. Fresh leukopaks delivered in this timeframe exhibit very high cell viability and functionality in downstream applications.

  • Delivery on the same day (in UK) or within 24 hours after collection throughout Europe
  • Donors meeting your exact requirements
  • Easy to schedule with our dedicated customer services team

Frozen Human Leukopaks
Our leukopaks are also available in a frozen format.

Our frozen leukopaks are cryopreserved using a sophisticated controlled rate freezing device within a few hours of donation.

We use CryoStor CS10® to prepare and preserve our frozen leukopaks for ultra low temperature environments (–80 to –196 °C). The CryoStor media provides a safe, protective environment for cells during the freezing, storage, and thawing process. By modulating the cellular biochemical response to the cryopreservation process, CytoStor provides enhanced cell viability and functionality, while eliminating the need to include serum, proteins, or high levels of cytotoxic agents. 

Frozen leukopaks are available as full, half or quarter packs, and can be shipped globally in dry ice. 

We have an inventory of frozen leukopaks which customers are able to search in order to select a pre-collected leukopaks ready for immediate shipping.

Representative cell composition analysis from a frozen leukopak

These products are for use in Biomedical Research only. They are not to be used for any form of human treatment, or for any purpose that is prohibited by law, including any use for human reproductive cloning. It is your responsibility to ensure that you have necessary licensing and ethics approvals in place for the use and storage of any human tissue related material supplied by Research Donors.