Choose a validation provider and ask what approach and deliverables it offers. We offer validation services through ABMIUM, and you can hold any provider to the same standard. Below you will find a comparison checklist, the methods explained, a commissioning workflow and a realistic view of cost.
TL;DR:
- Match validation to the exact assay and sample type; Western blot evidence does not establish performance in IHC or flow cytometry.
- For Western blotting, knockout is the gold standard; IHC and flow cytometry need independent antibodies and orthogonal comparisons because band size checks are unavailable.
- Agree measurable pass criteria, controls, replicates, and deliverables before work starts; request raw files, protocols, and checks on new lots in the written scope.
- Compare quotes only when scope, replicate counts, and deliverables match; mass spectrometry, knockout generation, repeat testing, and omitted extras raise total costs.
Table of Contents
- How do you compare antibody validation services?
- Which validation methods matter for your assay?
- How do you commission an antibody validation service?
- What does antibody validation cost?
- What do most labs get wrong about validation?
- How can we help you commission validation?
- FAQ
- Sources
How do you compare antibody validation services?
Use the points below when you request quotes. A provider that cannot answer them clearly has not yet earned your sample.
- Assay and sample match. The provider validates the antibody in the application and sample type you actually use, because validation is context-dependent and an antibody validated for Western blot is not automatically validated for IHC or flow cytometry.
- Pillar selection with reasons. The provider names which of the five pillars it proposes and why they suit your assay, for example knockout for Western blot or immunocapture–MS for IP–MS.
- Data transparency. Expect full blots, raw images, protocols, lot numbers and RRIDs where available. Complete validation data such as full blots, tested sample types and detailed protocols is the benchmark researchers should prefer.
- Reproducibility measures. Ask for lot testing, repeat validation and independent replicates written into the scope.
- Technical support. Look for protocol optimisation, troubleshooting help and a willingness to share SOPs.
- Acceptance criteria. The quote states quantitative pass or fail thresholds before work starts.
- Deliverable formats. Raw files, processed tables, MS identifications and SOPs are listed explicitly.
There is no regulatory duty to disclose validation data across the industry. Responsibility is shared between manufacturers and users, which is why the quote itself must spell out what you will receive. Our own antibody specificity testing checklist expands several of these points.
Pro Tip: Ask each provider to describe, in writing, what result would make them declare your antibody unsuitable. A confident answer signals real acceptance criteria.
Which validation methods matter for your assay?
No single universal test exists. The IWGAV recommends a multipronged, application-specific approach, and its five-pillar framework is widely accepted as a practical route to validating antibodies for a defined use. Each pillar yields a different kind of evidence:
- Genetic strategies: knockout or knockdown cells or tissue should lose the signal.
- Orthogonal strategies: antibody-based signal is compared with an antibody-independent measurement across samples, such as mass spectrometry or transcript levels.
- Independent antibody strategies: antibodies against different epitopes of the same target give concordant patterns.
- Tagged-protein expression: a tagged or recombinant version of the target is detected consistently.
- Immunocapture–MS: the protein pulled down is identified by peptide mass spectrometry.
For Western blotting, knockout validation is considered the accepted gold standard, though a combination of knockout, independent antibodies, recombinant expression and orthogonal methods gives assay-specific confidence. Immunocapture–MS suits IP and MS workflows. Independent antibodies and orthogonal comparison carry more weight in IHC and flow cytometry, where band-size checks are not available. Our primers on validation methods and independent antibody validation show how these look at the bench.
Individual tests can mislead because each addresses a limited question. A knockout proves the signal depends on the target, not that the antibody works in your fixed tissue. Combining pillars closes those gaps. Acceptable outputs include absence of a band in knockout lysate, MS peptide identifications matching the target, and orthogonal quantification that tracks the antibody signal.
How do you commission an antibody validation service?
Follow this sequence, adjusting scope to your assay.
- Scope. Describe your experimental context, sample types, controls and the decision the data must support.
- Define acceptance criteria. Agree measurable thresholds for specificity and reproducibility before any work begins.
- Sign off the protocol. Review the proposed pillars, controls and replicates, and confirm which samples you will supply.
- Execution. The provider runs the agreed experiments and flags deviations as they occur.
- Data delivery. Receive raw files, processed tables, MS identifications, SOPs and a report mapped to your criteria.
- Follow-up lot checks. Re-test new lots against the original evidence so results stay comparable over time.
Timelines scale with scope. A focused single-application check is typically shorter than a broad multi-application panel, and anything involving mass spectrometry or generating knockout material extends the schedule. Ask for a range rather than a fixed date. Budget drivers include reagents, MS time, replicate numbers and repeat testing, so a clear scope is the strongest cost control. Name the deliverables and file formats in the order itself to avoid ambiguity. Our guide to Western blot antibody selection is a useful companion when your first application is blotting.
Pro Tip: Send a small set of well-characterised positive and negative control samples with your request. It speeds scoping and gives both sides a shared reference.
What does antibody validation cost?
Published price lists for validation services are rare, so treat any figure you find with caution. Providers usually quote one of three ways: a fixed fee for a defined single-application check, a per-assay or per-pillar fee for broader panels, or a custom project fee when knockout generation or mass spectrometry is involved. Fixed quotes are easiest to compare, but only when scope, replicate numbers and deliverables are identical across providers.
Total cost is more than the headline fee. Add the sample preparation you will do yourself, the time spent reviewing data, repeat testing when a new lot arrives, and the price of the experiments that fail if you skip validation. A cheaper quote that omits raw data, SOPs or lot checks often costs more once you request them as extras. Compare quotes line by line against the checklist above, and ask each provider to price the same scope. Current pricing details for our validation and custom services are on our site.
What do most labs get wrong about validation?
In my experience, the commonest mistake is treating validation as a vendor box to tick rather than an experiment to design. Labs accept a datasheet image from a different application, or validate once and never revisit when the lot changes. Rigorous, application-specific validation pays back through fewer failed experiments, clearer provenance and results that other groups can reproduce. Our work on lot checks and reproducibility comes back to this point repeatedly.
The most useful step is also the least glamorous: write down your assay, your samples and your pass criteria before you look at products. That is the logic behind ABMIUM MATCH, where you submit your experimental requirements and we help you compare candidate reagents and the evidence behind each. Starting from the experiment, not the catalogue, removes most avoidable disappointment.
— Veron
How can we help you commission validation?
If you want validation scoped around your experiment, we can start from your requirements and build outward.
- ABMIUM MATCH™: scientist-led sourcing that compares suitable products and supporting evidence against your experimental needs.
- Product Validation Service: independent validation of reagents.
- Custom Antibody Service: bespoke development when no suitable antibody exists.
- Native Mass Spectrometry and Spatial Validation: delivered through specialist collaborators.
To request a quote, prepare your target, application, sample types, available controls and the acceptance criteria you need. Pricing is available on request. Begin on our homepage, or send bespoke requests through our custom product page. If you already know you need a reagent, browse our primary antibodies.
FAQ
How do you validate an antibody?
You test it experimentally in the exact assay and sample type you plan to use, ideally with more than one strategy. Genetic controls, independent antibodies, orthogonal measurements and mass spectrometry each address a different risk.
What are the five pillars of antibody validation?
The IWGAV pillars are genetic, orthogonal, independent antibody, tagged-protein expression and immunocapture–MS strategies. A minimum of one pillar is advised for claiming adequate validation, applied to your specific assay.
What should a validation report include?
It should contain full blots or raw images, tested sample types, positive and negative controls, protocols, and lot numbers. Clear reporting of these items is what lets another lab reproduce your result.
What if validation fails?
A failed result is useful information. Ask the provider for troubleshooting support, try an alternative antibody or pillar, and repeat the check before committing to the full experiment.
Sources
- The ABCs of finding a good antibody: How to find a good antibody, validate it, and publish meaningful data
- Guidelines on antibody use in physiology research | American Journal of Physiology-Renal Physiology | American Physiological Society