Endotoxin Removal Services

Endotoxin is a critical interfering factor when proteins are applied in cellular and in vivo assays. Residual endotoxin may cause biased experimental outcomes or even complete assay failure. We offer professional endotoxin removal services. Customized efficient and mild endotoxin elimination protocols are developed for protein samples of varying sources and biochemical properties. Multiple well-established purification strategies are implemented throughout the service workflow to drastically reduce endotoxin levels while preserving maximum protein purity, structural stability and biological activity. All treated samples undergo rigorous testing and quality assessment to guarantee endotoxin concentrations meet experimental specifications. This service is widely compatible with cell-based experiments, functional research and subsequent downstream applications, delivering reliable support to ensure accurate and reproducible experimental data.

Service Advantage

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Strictly controllable endotoxin levels

We deploy multiple well-established endotoxin removal strategies, including adsorption, affinity depletion and phase separation, to efficiently reduce endotoxin in protein samples to ≤0.1 EU/µg protein (customizable upon request). All samples are quantitatively tested via the LAL assay (Limulus Amebocyte Lysate test) to guarantee endotoxin concentrations meet stringent standards for cell-based assays and in vivo research.
Maximal retention of protein biological activity

Endotoxin depletion is carried out under mild, protein-compatible conditions without strong acid, strong base or high-temperature treatment, so as to maximally preserve the native conformation, tertiary structure and biological activity of proteins. This service is especially suitable for functional proteins that are highly sensitive to conformational changes and activity loss.
Reduced experimental interference

High endotoxin concentrations frequently trigger non-specific immune activation, cellular stress responses or false-positive results. Efficient endotoxin depletion can drastically cut endotoxin-associated background noise, particularly in cell-based assays, immunology research and in vivo experiments, enabling acquisition of more authentic and reliable experimental data.
High batch-to-batch consistency

The endotoxin depletion workflow delivers excellent reproducibility via standardized SOPs and a comprehensive quality control system. It maintains high consistency across batches in terms of endotoxin level, protein purity and biological activity, effectively improving the comparability and reliability of experimental outcomes.

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Frequently Asked Questions

What is endotoxin and why is endotoxin removal necessary?

Endotoxin (LPS) is mainly derived from Gram-negative bacteria. It can induce non-specific inflammatory responses in cell assays, animal studies and immunology-related research, which severely interfere with experimental results. Therefore, endotoxin levels must be strictly controlled for relevant applications.
What is the lowest endotoxin level that can be achieved?

We can adjust endotoxin levels to less than 1 EU/μg or even lower (e.g., <0.1 EU/μg) based on experimental requirements, complying with the standards for most cell-based and in vivo assays.
Will endotoxin depletion affect protein activity or purity?

Under standard processing conditions, endotoxin depletion will not damage protein structure or biological activity. For activity-sensitive proteins, we optimize treatment parameters to maintain maximum protein stability while achieving low endotoxin levels.
Can an endotoxin testing report be provided upon completion?

Yes, all endotoxin removal services are accompanied by LAL endotoxin test data with authentic and traceable results, which can be used by customers for experimental records, project applications and quality assessment.

If you have any questions, please contact us.

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Endotoxin Removal Services

Sample Evaluation

Custom Protocol Design

EndotoxinTemoval Treatment

Quality Testing

Result Delivery

Service Advantage

Strictly controllable endotoxin levels

Maximal retention of protein biological activity

Reduced experimental interference

High batch-to-batch consistency

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