The Leader in Assays to Study the 
Lympho-Hematopoietic System


Access our line of research assays and reagents for hematopoietic cells from the sub-menu on the left. Preferred Cell Systems™ has the largest selection of reagents and cell-based assays for any application in stem cell, basic and veterinary research.

From traditional colony-forming cell (CFC/CFU) assays to the most advanced, sensitive and accurate HALO® assays, and everything in-between, Preferred Cell Systems™ has the right product for your hematopoietic research. Our base media and cell expansion products are also used by many of the largest biopharmaceutical companies world-wide.

We guarantee all of our products. Getting the highest quality results for your research is our goal. That includes providing excellent technical assistance. Contact us with your questions and feedback: (719) 264-6251 or 


Media and Cell Expansion Reagents

  • HemoGro™ Media: Base serum-free and low serum for optimal growth
  • CellExpand™: Cell expansion reagents for multiple populations and species. New reagents are now available for expanding T- or B-lymphopoietic cell populations.
  • HemaFlow™: The Intelligent Cell Differentiation Assay to replace the CFU assay.

Lympho-Hematopoietic Cell Viability and Proliferation Assays that Replace the Colony-Forming Assay

  • Standardized and Validated ATP Bioluminescence Assays
    • HALO®: Assays for discerning scientists. Individual assays for multiple lympho-hematopoietic cells populations from up to 9 different species, including assays for T- and B-lymphopoietic progenitor cells.
    • HALO® "Global": 4-, 5- and 7-population assays that predict the "global" response of the lympho-hematopoietic system.
  • Fast and Easy to Use ATP Bioluminescence Assays with Optional Standardization
    • HemoGLO™: An easy and rapid ATP bioluminescence assay, equivalent to HemoFLUOR™ and HemoLIGHT™ (see below) for lympho-hematopoietic stem and progenitor cells that is similar in price to MethoCult™.
  • Fast and Easy to Use Fluorescence Assays with Excellent Flow Cytometric Capability
    • MultiCellGro™: Multiple lineage assay with phenotypic capability
    • HemoFLUOR™: The fluorescence assay equivalent to HemoGLO™, but with better flow cytometric multiplexing capability, but similar in price to MethoCult™.
  • Fast and Easy to Use Absorbance/Colorimetric Assays with Excellent Flow Cytometric Capability
    • HemoLIGHT™: The absorbance/colorimetric assay equivalent to HemoGLO™ and HemoFLUOR™, but with excelent flow cytometric multiplexing capability, and similar in price to MethoCult™.

Methylcellulose Colony-Forming Assays

Standardized Colony -Forming Assay

  • CAMEO™-96: Standardized CFC proliferation and differentiation CFC assay