Name: XR FBS Qualified Fetal Bovine Serum for Cell Culture
Brand: XR
SKU: XR FBS

Is XR FBS suitable for primary cell culture?

Yes. XR FBS is tested across multiple cell types and supports primary cell culture workflows requiring reliable cell growth and consistent performance.

Description

In cell culture workflows, variations in serum quality, inconsistent growth performance and lot-to-lot differences can affect cell proliferation, morphology and experimental reproducibility. Selecting a reliable fetal bovine serum is essential for maintaining stable cell culture conditions across routine research applications.

XR FBS Qualified Fetal Bovine Serum is a cell culture serum developed for mammalian cell culture, primary cell culture and stem cell research applications. XR evaluates multiple domestic and imported FBS products and selects serum batches based on cell growth performance, viability, morphology and functional maintenance across more than 100 cell models.

Each batch of XR FBS undergoes strict quality evaluation including physicochemical testing, microbial testing and cell culture performance assessment. The serum is designed to provide consistent support for cell growth, expansion and maintenance in commonly used research workflows.

XR FBS is suitable as a cell culture supplement for researchers working with established cell lines, primary cells and stem cell culture systems requiring dependable fetal bovine serum quality and stable experimental performance.

Specifications

Product Name	XR FBS Qualified Fetal Bovine Serum
Product Type	Fetal Bovine Serum (FBS) for Cell Culture
Application	Mammalian cell culture, primary cell culture and stem cell research
Serum Grade	Research grade cell culture serum
Source	Healthy cattle from non-epidemic regions with traceable origin
pH	7.0–8.0
Endotoxin	<1 EU/mL
Total Protein	35–50 g/L
Hemoglobin	≤200 mg/L
Sterile Filtration	<0.1 μm filtration
Mycoplasma	Not detected
Virus	Not detected
Storage	-20°C
Shelf Life	12 months
Research Use	For research use only

Features

Qualified fetal bovine serum for reliable cell culture performance — XR FBS is selected through comparative evaluation of multiple FBS products to provide consistent support for mammalian cell growth and maintenance.
Multi-cell model tested performance — XR FBS has been evaluated using more than 100 cell culture models, including established cell lines and primary cells, to assess cell viability, proliferation and morphology.
Suitable for mammalian cell culture workflows — Provides essential serum components including growth factors, proteins and nutrients required for routine cell expansion and maintenance.
Supports primary cell culture applications — Designed for researchers working with primary cells requiring stable growth conditions and reproducible experimental results.
Compatible with stem cell culture research — Suitable as a cell culture supplement for stem cell-related workflows including MSC expansion and maintenance studies.
Low endotoxin and contamination-controlled quality — Each batch is tested for endotoxin, microbial contamination, mycoplasma and viral safety indicators.
Sterile filtered cell culture serum — Manufactured using filtration processes designed to support clean and reliable laboratory workflows.
Consistent lot-to-lot performance — Batch screening helps reduce variability commonly associated with different serum sources.

Performance Data

Cell Growth Performance Across Multiple Cell Types

XR FBS was evaluated across different commonly used cell culture models to compare cell morphology, attachment, viability and proliferation performance. Representative cell culture images demonstrate compatibility with various mammalian cell culture applications.

Cell morphology comparison of mammalian cell cultures maintained with XR FBS fetal bovine serum including 293T H9C2 HUVEC HU7 3T3 and mouse MSC cells

Recommended alt: Cell morphology comparison of mammalian cell cultures maintained with XR FBS fetal bovine serum including 293T H9C2 HUVEC HU7 3T3 and mouse MSC cells

Multi-Cell Validation for Cell Culture Applications

XR FBS selection involves comparison of multiple fetal bovine serum products using diverse cell culture models. Evaluation parameters include cell viability, proliferation characteristics, morphology maintenance and functional performance to identify serum batches suitable for research applications.

Applications

XR FBS Qualified Fetal Bovine Serum is designed for laboratories requiring dependable cell culture serum for routine expansion, maintenance and experimental research. Its tested performance supports a broad range of mammalian cell culture workflows including established cell lines, primary cells and stem cell-related studies.

Mammalian cell culture — Supports routine culture and expansion of commonly used mammalian cell lines by providing essential serum-derived growth factors, proteins and nutrients.
Primary cell culture — Suitable for primary cell expansion and maintenance workflows where consistent cell growth conditions are required.
Stem cell culture research — Used as a serum supplement in stem cell research workflows including mesenchymal stem cell culture and expansion studies.
Mesenchymal stem cell (MSC) culture — Supports MSC maintenance and proliferation studies requiring reliable fetal bovine serum performance.
Cell proliferation and expansion studies — Provides a supportive environment for evaluating cell growth characteristics and biological responses.
Protein expression research — Suitable for cell culture systems used in recombinant protein expression and molecular biology workflows.
Drug discovery and screening research — Supports in vitro cell-based assays requiring stable culture conditions.
Biotechnology and academic research — Applicable for laboratories conducting general cell biology, cellular engineering and life science research.

Recommended Cell Culture Workflow

XR FBS can be used as a serum supplement in standard cell culture workflows. Researchers typically add XR FBS to appropriate basal culture media according to the requirements of the selected cell type and experimental design.

A typical workflow includes preparation of complete cell culture medium, cell seeding, routine culture maintenance, monitoring of cell morphology and evaluation of experimental endpoints.

Prepare complete culture medium by supplementing basal medium with XR FBS according to the cell culture protocol.
Seed cells at the recommended density according to cell type and application requirements.
Maintain cells under recommended culture conditions and monitor attachment, morphology and proliferation.
Perform downstream assays after cells reach the required experimental condition.

Why Choose XR FBS?

Selecting an appropriate fetal bovine serum is critical for maintaining reproducible cell culture performance. Differences in serum source, processing methods and batch characteristics may influence cell growth rate, morphology and experimental consistency.

XR FBS addresses these challenges through multi-source screening and performance evaluation across different cell culture models. By comparing more than 100 cell types and assessing parameters including cell viability, proliferation and morphology, XR identifies serum products with balanced performance and reliability.

Each XR FBS batch undergoes quality control testing including physicochemical analysis, microbial testing and cell culture validation. This provides researchers with a stable cell culture supplement suitable for mammalian cells, primary cells and stem cell research applications.

Quality Control Testing

Testing Category	Quality Assessment
Physicochemical Testing	pH, protein concentration and hemoglobin evaluation
Endotoxin Testing	Endotoxin level verification for cell culture compatibility
Microbial Testing	Bacterial and fungal contamination testing
Mycoplasma Testing	Mycoplasma contamination not detected
Virus Testing	Virus screening performed
Cell Culture Testing	Performance evaluation using multiple cell culture models

Experimental Considerations

XR FBS should be stored at -20°C and protected from repeated freeze-thaw cycles to maintain serum quality and performance.
Before use in cell culture experiments, thaw XR FBS according to standard laboratory procedures and mix gently to ensure uniform distribution of serum components.
The optimal FBS concentration may vary depending on cell type, basal medium formulation and experimental objectives. Researchers should determine the appropriate supplementation ratio for each application.
Different cell types may exhibit different responses to serum components. Cell culture conditions should be optimized according to specific experimental requirements.
XR FBS is intended for research use only and is not intended for human or veterinary therapeutic applications.

FAQ

What is XR FBS Fetal Bovine Serum used for?

XR FBS is a qualified fetal bovine serum designed for cell culture applications, including mammalian cell culture, primary cell culture and stem cell research. It provides serum-derived growth factors, proteins and nutrients that support cell growth and maintenance.

What is the difference between FBS and fetal calf serum?

FBS (Fetal Bovine Serum) and fetal calf serum are commonly used terms referring to serum collected from fetal bovine sources. Both terms describe serum supplements widely used in cell culture applications.

Is XR FBS suitable for mammalian cell culture?

Yes. XR FBS is designed for mammalian cell culture workflows and has been evaluated using multiple mammalian cell models, including commonly used cell lines and primary cells.

Can XR FBS be used for primary cell culture?

Yes. XR FBS supports primary cell culture applications by providing a consistent serum environment suitable for cell expansion and maintenance research.

Can XR FBS be used for stem cell culture?

Yes. XR FBS can be used as a cell culture supplement in stem cell research workflows, including mesenchymal stem cell culture and expansion studies.

What cell types have been tested with XR FBS?

XR FBS has been evaluated using multiple cell models including 293T, H9C2, HUVEC, HU7, 3T3 and mouse primary MSC cells to assess cell viability, proliferation and morphology performance.

How does XR FBS ensure batch consistency?

XR FBS batches undergo quality evaluation including physicochemical testing, microbial testing and cell culture performance assessment. Batch screening helps reduce variability between different serum lots.

What quality tests are performed on XR FBS?

XR FBS is tested for pH, endotoxin level, total protein content, hemoglobin level, microbial contamination, mycoplasma contamination and viral safety indicators.

Is XR FBS a sterile filtered cell culture serum?

Yes. XR FBS is processed using filtration procedures including filtration below 0.1 μm to support sterile cell culture workflows.

What is the endotoxin level of XR FBS?

The endotoxin level of XR FBS is controlled at less than 1 EU/mL according to product quality specifications.

How should XR FBS be stored?

XR FBS should be stored at -20°C. Proper storage conditions help maintain serum quality and support reliable cell culture performance.

How long is the shelf life of XR FBS?

The recommended shelf life of XR FBS is 12 months when stored under appropriate conditions.

Does XR FBS contain mycoplasma?

No. XR FBS undergoes mycoplasma testing, and mycoplasma contamination is not detected according to product specifications.

Why choose qualified FBS instead of standard fetal bovine serum?

Qualified FBS products are evaluated through additional quality and performance testing to improve reliability for research workflows. XR FBS is screened using multiple cell culture models to provide consistent cell growth support.

XR Fetal Bovine Serum