Description
Product Overview
SimplaceX – Serum-Free Medium for HEK293T is a protein-supplemented, serum-free cell culture medium optimised for high-yield transient transfection and stable expression in HEK293 and HEK293T cell lines.
Designed for rapid adaptation from serum-containing protocols, SimplaceX supports high cell densities, excellent viability, and robust recombinant protein yields — without the lot-to-lot variability of FBS. Available from SeamlessBio with full documentation and batch reservation. Learn more about our cell culture media portfolio or explore our SimplaceX product page.
SimplaceX: Specifications
- Type: Serum-free, protein-supplemented medium (not chemically defined)
- Cell lines: HEK293, HEK293T — optimised for transient and stable expression
- Adaptation: Stepwise FBS reduction protocol; full adaptation in 5–10 passages
- Sterility: Sterile filtered, mycoplasma tested
- Storage: 2–8 °C (protect from light)
- Documentation: Full technical data sheet, CoA, sterility certificate included
Applications
- Transient transfection for recombinant protein and antibody production (HEK293T)
- Viral vector manufacturing (lentivirus, AAV) in HEK293-based systems
- Stable cell line development and selection
- Scale-up from shake flask to bioreactor in serum-free conditions
- Process development where FBS removal is required — see our full cell culture portfolio
Available Formats
| Format | Size |
|---|---|
| Bottle | 500 mL |
| Bottle | 2000 mL |
Key Benefits
Batch Reservation
Reserve validated lots up to 36 months for reproducible long-term workflows.
Full Documentation
CoA, BSE/TSE, sterility certificate — supplied by ISO 9001 and ISO 13485 certified partner facilities. Additional documents on request.
EU & Swiss Supply
Sourced from certified EU and Swiss partner facilities — fast delivery across EU, UK and Switzerland, full documentation included.
Frequently Asked Questions
What is SimplaceX and how does it differ from standard serum-containing HEK293 medium?
SimplaceX is a serum-free, protein-supplemented medium specifically formulated for HEK293 and HEK293T cells. Unlike standard DMEM + 10% FBS, SimplaceX eliminates animal serum while maintaining high cell viability and transfection efficiency. It is protein-supplemented (not fully chemically defined), making it a practical bridge between serum-based and fully defined CDM processes.
How many passages does HEK293T adaptation to SimplaceX take?
Full adaptation typically takes 5–10 passages using a stepwise FBS reduction protocol: reduce FBS concentration by 2–3% per passage while supplementing with SimplaceX. Most HEK293T lines reach >95% viability in 100% SimplaceX within 7–8 passages. A detailed adaptation protocol is included with the technical data sheet.
What is the difference between SimplaceX and SimplaceCDX?
SimplaceX is serum-free but contains protein supplements (e.g. recombinant albumin or transferrin). SimplaceCDX is fully chemically defined — every component is known and specified, with no undefined protein fractions. SimplaceCDX is required for GMP processes where a full CDM (chemically defined medium) is mandated in regulatory documentation. SimplaceX is the preferred starting point for most research and process development workflows transitioning away from FBS.
Is SimplaceX suitable for AAV or lentiviral vector production?
Yes — SimplaceX supports HEK293T-based viral vector manufacturing, including transient triple or quadruple transfection protocols for lentivirus and AAV production. Serum-free conditions reduce downstream purification complexity by eliminating serum proteins from the harvest. For GMP viral vector applications requiring full CDM documentation, SimplaceCDX is recommended.
Can SimplaceX be used in bioreactors or only in static culture?
SimplaceX is compatible with both static culture (flasks, multi-well plates) and dynamic bioreactor systems (stirred-tank, rocking bioreactors). For bioreactor use, antifoam supplementation may be required depending on the system. Contact our team for application-specific guidance and to request a sample for process evaluation.
Request a Quote or Sample
48h response · EU & Swiss Supply · Batch reservation available · Full documentation



