Start with the basics
A stem cell lab report — sometimes called a certificate of analysis — should clearly identify the product, batch, and processing facility.
Core fields to look for
Cell type and source
Mesenchymal stromal cells (MSC), hematopoietic stem cells (HSC), and exosomes are not interchangeable. The report should name the cell type and the tissue source.
Cell count and viability
Cell count alone is not enough. Viability percentage indicates how many cells are alive at release.
Sterility and pathogen screening
Microbial culture, mycoplasma, and endotoxin testing should be documented. Donor screening typically includes HIV, HBV, HCV, and syphilis.
Marker profile
For MSCs, expected markers include CD73, CD90, and CD105 positive, with CD34 and CD45 negative.
When something is missing
Missing fields are not always a red flag, but they are a reason to ask follow-up questions before paying.