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Endotoxin Testing

Endotoxin Testing

Endotoxins are the active components of lipopolysaccharides (LPS) in the cell walls of Gram-negative bacteria, which can impact the safety and performance of pharmaceuticals, biologics, and laboratory reagents even at trace levels. Therefore, endotoxin testing is critical in drug development and production to ensure product quality, experimental reliability, and development efficiency. BOC Sciences detects endotoxins using highly sensitive bioassays, including LAL, rFC, and MAT, converting LPS presence into measurable signals. We provide comprehensive testing across pharmaceuticals, biologics, cell and gene therapy products, and water systems, delivering precise, reproducible, and high-throughput results that help clients monitor quality, reduce contamination risks, and accelerate R&D progress.

BOC Sciences Endotoxin Detection Services

Endotoxin Quantification Service

We provide precise detection and quantification of endotoxins in diverse sample types. At BOC Sciences, our validated methods ensure reliable, reproducible results, supporting product safety, experimental accuracy, and seamless integration into your research or manufacturing workflow.

Endotoxin Consulting Service

We provide expert guidance on method selection, validation protocols, and experimental design. Our consulting ensures optimized testing workflows, accurate interpretation of results, and technical support tailored to your research or production needs.

Quality Control Monitoring

We implement ongoing QC programs including batch release testing, standard curve verification, and continuous monitoring. Our approach guarantees consistent product quality, reliable assay performance, and confidence in every measurement and production batch.

Want Fast and Accurate Endotoxin Testing Services?

BOC Sciences provides professional endotoxin testing with reliable results and flexible options to support diverse sample types and project goals.

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Advanced Methods for Endotoxin Testing

MTT Assay

Gel-Clot (LAL) Method

Using traditional LAL reagents, this method induces gel formation in the presence of endotoxins. It is simple to operate, suitable for semi-quantitative batch screening, and commonly applied in preliminary testing of pharmaceuticals and medical devices.

CCK-8 Assay

Kinetic-Chromogenic LAL Method

This method measures color change proportional to endotoxin concentration using 405 nm absorbance. Offering high sensitivity (0.005–50 EU/mL), it is ideal for precise quantification in injectable drugs, vaccines, and other products requiring accurate endotoxin analysis.

Caspase-3 Activity Assay

Kinetic-Turbidimetric LAL Method

Endotoxin levels are quantified by monitoring turbidity increase over time. It is less affected by optical interference and suitable for transparent or slightly turbid samples, providing reliable results for diverse sample types.

LDH Assay

Recombinant Factor C (rFC) Assay

Employing recombinant Factor C protein in a single-step enzymatic reaction with colorimetric or fluorescent readout, this method avoids horseshoe crab-derived reagents, is environmentally friendly, and is insensitive to β-glucan interference, meeting strict animal-free project requirements.

Western Blotting

Monocyte Activation Test (MAT)

Using human monocytes or PBMCs, this method measures cytokine release (IL- 1β, IL- 6) in response to endotoxins and other pyrogens. It can detect non-endotoxin pyrogens and aligns with EU guidelines for animal testing alternatives.

ELISA

β-Glucan Detection (LAL-β-Glucan) Method

This specialized LAL-based assay detects β- glucans to prevent interference with endotoxin results. It is particularly suitable for samples containing fungal components or polysaccharides, ensuring accurate endotoxin measurement.

Supported Samples for Our Endotoxin Study Services

BOC Sciences provides comprehensive endotoxin testing across key applications, ensuring product safety, quality control, and process reliability.

Pharma Products

  • Injectable drugs
  • Vaccines
  • Biologics
  • Ophthalmic solutions
  • Parenteral nutrition products

Biologics & Cell & Gene Therapy (CGT)

  • Cell therapy products
  • Gene therapy products
  • Viral vectors
  • Recombinant proteins
  • Monoclonal antibodies

Water Systems

  • Purified water
  • Water for injection (WFI)
  • Reverse osmosis water
  • Process water

Custom Endotoxin Testing – Sample Submission Form

Provide your sample specifications, and BOC Sciences will offer expert guidance and high-quality endotoxin testing tailored to your workflow.

Submit Your Sample

BOC Sciences Endotoxin Analysis Services Workflow

Requirement Understanding

1Initial Inquiry and Requirement Assessment

Clients provide sample information and testing objectives. Our specialists discuss goals and recommend a tailored endotoxin testing strategy.

Experimental Design

2Sample Submission and Verification

Clients submit samples with relevant details. We perform quality checks and confirm sample integrity before initiating testing.

Model System Construction

3Testing Execution and Data Analysis

Our laboratory conducts endotoxin assays using validated methods. Results are carefully analyzed and interpreted by experienced scientists.

Pharmacological Testing Execution

4Reporting and Delivery

A comprehensive report, including data interpretation, is generated and promptly delivered to the client in electronic format.

Endotoxin Testing Solutions for Development Projects

01

Solution for Biopharmaceuticals

BOC Sciences provides tailored endotoxin testing services for biopharmaceutical products, including monoclonal antibodies, vaccines, and recombinant proteins. Our solutions deliver precise quantification and actionable insights, supporting process optimization and quality assurance throughout the drug development lifecycle.

02

Solution for Formulation Development

We provide endotoxin testing tailored to formulation studies, supporting excipient compatibility and stability assessment. Our precise analytical services help clients identify contamination risks, optimize formulations, and maintain product quality throughout development.

03

Solution for Process Optimization

BOC Sciences delivers targeted endotoxin analysis to optimize manufacturing processes. By monitoring raw materials, intermediates, and final products, we help clients reduce contamination, improve yield, and ensure consistency, enhancing efficiency in bioprocess and pharmaceutical production.

04

Solution for Preclinical & Safety Testing

Our endotoxin testing services support preclinical studies and safety evaluations by providing rapid, sensitive, and reliable detection. We assist clients in validating product safety, guiding dose selection, and ensuring accurate risk assessment for early-stage drug candidates.

Ensure Product Safety with Expert Endotoxin Testing!

Partner with BOC Sciences to perform precise endotoxin analysis for your raw materials, APIs, and final formulations. Our experienced scientists provide fast, dependable results, enabling confident decision-making in your development workflow.

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Endotoxin Testing Excellence: Advantages You Can Trust

Rapid and Reliable Endotoxin Detection

Our endotoxin testing workflow ensures fast turnaround times without compromising accuracy, handling diverse sample types from biologics to raw materials with consistently reproducible results.

Advanced Quantitative Sensitivity

Leveraging state-of-the-art detection platforms, we achieve low-level endotoxin quantification, reliably detecting trace contaminants even in complex formulations.

Comprehensive Sample Compatibility

We handle a diverse range of sample matrices, from protein therapeutics to environmental samples, delivering reliable and consistent performance across multiple industries.

Expert Data Analysis and Reporting

Our team delivers detailed, actionable reports, integrating multi-dimensional analysis for clear interpretation, helping clients make informed quality control decisions efficiently.

Applications of Endotoxin Testing in Drug Development

Elemental & Material Analysis

Analytical Development and Quality Control

Formulation Services

Endotoxin Testing Case Studies and Success Stories

Client Needs: A biopharmaceutical company developing monoclonal antibodies required precise endotoxin quantification in early-stage formulations to ensure batch consistency and avoid immune response interference in downstream pharmacology studies.

Challenges: The client faced inconsistent endotoxin readings due to high protein concentrations and complex excipient combinations, which made it difficult to compare batches reliably. Their internal testing methods failed to detect low-level contamination, delaying formulation decisions. Additionally, the client needed rapid results to keep multiple formulation iterations on schedule, but their existing processes could not support high-throughput demands.

Solution: BOC Sciences applied a combination of kinetic chromogenic LAL assays and sample dilution strategies to mitigate matrix interference. Parallel spike recovery and inhibition testing validated accuracy, while automation enabled high-throughput assessment.

Outcome: Delivered reliable endotoxin profiles for all formulations, allowing the client to optimize buffers and protein stabilization confidently. High-confidence data accelerated formulation refinement and reduced decision-making delays.

Client Needs: A pharmaceutical developer required sensitive endotoxin detection in lipid nanoparticle (LNP) formulations used for nucleic acid delivery to guide quality assessment of multiple experimental batches.

Challenges: The client struggled to detect low-level endotoxin contamination because the lipid-rich matrix masked signals, leading to uncertainty in batch quality. They were unable to compare multiple LNP formulations reliably, which slowed experimental planning and risked proceeding with suboptimal batches. High variability between internal tests made it difficult for the client to make informed process adjustments.

Solution: BOC Sciences employed a validated recombinant factor C assay with optimized extraction and dilution protocols. Internal controls and batch comparisons ensured reproducible results across varied LNP compositions.

Outcome: Consistent endotoxin profiles allowed the client to identify subtle batch differences and refine manufacturing parameters, maintaining high-quality experimental material for research.

Client Needs: A small-molecule drug discovery company sought rapid endotoxin assessment of multiple injectable candidates to prioritize safe compounds for in vivo pharmacology studies.

Challenges: The client found that diverse solubility profiles and excipient combinations caused interference in endotoxin readings, making it hard to rank candidates accurately. Their internal assays lacked sensitivity for low-level contamination, and throughput limitations delayed decision-making, risking bottlenecks in candidate selection. They needed robust, reproducible data to confidently advance compounds.

Solution: BOC Sciences implemented a multiplexed chromogenic LAL testing workflow with tailored sample preparation. Spike recovery validation and automated handling supported high-throughput, interference-resistant assessment.

Outcome: The client could rank injectable candidates efficiently, accelerate compound prioritization, and reduce the risk of advancing contaminated candidates, streamlining downstream pharmacological evaluation.

Frequently Asked Questions

Frequently Asked Questions

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