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PRIME-XV FreezIS DMSO-Free
Ensure Potency That Therapies Require Without the Toxicity Risk
DMSO-free, protein-free, animal component-free, chemically defined cryopreservation medium
Designed to maintain viability and maximize efficiency for preserving cells in today’s advanced applications.
- Eliminates the risk of DMSO toxicity and maintains potency of human mesenchymal stromal/stem cells (MSCs), PBMCs (T cells), and hematopoietic stem cells (HSCs) throughout cryopreservation
- Achieves high post-thaw viability and growth: Viability of thaw cell typically within 10% of freezing cell viability. (Viability assessed by Trypan Blue assay)
- Supports cell density for MSC and HSC from 0.5 X 106 cells/mL to 1 X 106 cells/mL and PBMCs (T cells) minimum 5 X 106 cells/mL
- Maintains cell surface marker expression of MSCs and PBMCs (T cells) post-thaw
- Preserves the physical integrity and functionality of cells post-thaw after storage for short-term at -80°C* and long-term storage in liquid nitrogen to -196°C
- Can directly replace DMSO- and/or serum-containing media with comparable post-thaw cell viability
Accelerate life-changing therapies to market: Now available as an excipient and non-excipient medium
With the flexibility of using non-excipient media for research needs and a seamless transition to excipient for clinical trials, we are dedicated to therapeutic success no matter how manufacturing priorities change.
For tissue banks we recommend following the guidelines provided by each individual tissue bank and local regulations. Excipient (91140EX)** and non-excipient (91140)† products are available as complete, ready-to-use media.
Meet with our team of cell culture media experts to determine the right PRIME-XV formulation for manufacturing success.
Product | Contains DMSO | DMSO-free | Ancillary | Excipient | Post-thaw wash step | Reduce vein-to-vein time |
PRIME-XV FreezIS | ✓ | ✓ | ✓ | |||
PRIME-XV FreezIS DMSO-Free |
✓ | ✓ | ✓ | |||
PRIME-XV FreezIS (EX) | ✓ | ✓ | ✓ | |||
PRIME-XV FreezIS DMSO-Free (EX) |
✓ | ✓ | ✓ |
*Human MSC and PBMC (T Cell) data available for short-term storage. Human HSC data is not available.
**Excipient products are for research or further manufacturing use only. Not for injection as a stand-alone product or diagnostic procedures. Product can be used as excipient, which means that the cells and media combined are treated as one product that is to be approved by the FDA. Testing for individual applications is the responsibility of the customer.
†Non-excipient products are for research or further manufacturing use only. Not for injection or diagnostic procedures. Testing for individual applications is the responsibility of the customer.
Supports Comparable MSC Viable Cell Density and Percent Viability with DMSO-free and DMSO-containing Media


Figure 1. PRIME-XV FreezIS DMSO-Free retains comparable MSC viable cell density and percent viability after cryopreservation compared to DMSO-containing solution. Human adipose-derived MSCs were frozen in PRIME-XV FreezIS DMSO-Free and in PRIME-XV FreezIS. The cells were stored in liquid nitrogen for 2 days before they were thawed and cultured through 2 passages until 80% confluent. The viable cell density (A) and percent viability (B) were assessed with trypan blue staining in a Vi-CELL Cell Viability Analyzer at thaw and 2 passages post-thaw. Viable cell density was calculated using the cell count multiplied by the volume.
PRIME-XV FreezIS DMSO-Free Successfully Protects Human T Cells Potency and Viability






Figure 2. Cells frozen in PRIME-XV FreezIS DMSO-Free show robust expansion if plated directly into culture medium after thaw, without washing out the cryopreservation medium. Cells cultured in 24-well R-series G-Rex plates (A) and 6-well M-series G-Rex plates (C) recovered well from cryopreservation when plated directly into cell culture media post-thaw. Cells thawed from PRIME-XV FreezIS DMSO-Free media best maintained pre-freeze viability in the first 24 hours post-thaw (B). Data is representative of 3 donors.
Manufactured to facilitate transfer from research to clinic with robust raw material controls and supply chain management support
- FDA, Federal, and State registered – GMP manufacture
- EN ISO 13485:2016 certified
- MDSAP certified
- Extensive QC testing including functionality, sterility (USP <71>), endotoxin (USP <85>), and mycoplasma (USP <63>)
- Drug Master Files (DMFs) filed with the FDA – available upon request
Custom sizes and packaging available upon request.
Contact us for international pricing and custom formulations.