BioLegend equipment

About BioLegend

BioLegend is an American manufacturer of antibodies and reagents for biomedical research, incorporated in June 2002. The company was founded in San Diego by Gene Lay, D.V.M., who had earlier co-founded PharMingen, and it was established to develop and manufacture antibodies and reagents for the research market. Its headquarters remain in San Diego, United States. Since the acquisition completed on September 17, 2021, BioLegend has operated as part of Revvity, the company formerly known as PerkinElmer. Its catalogue spans antibodies, recombinant proteins, ELISA kits and sets, multiplex immunoassays, flow cytometry reagents, buffers and cell biology reagents. On Questpair, 86 of these items are listed from 9 verified suppliers and distributors.

BioLegend reagent and antibody lines

BioLegend's reagents serve several distinct areas of molecular biology and immunology. The Brilliant Violet and StarBright dyes are fluorophores for flow cytometry, the technique that reads cell populations one cell at a time by the markers on their surface, and these dyes are what let a panel carry many colours at once. The company's primary antibodies and recombinant proteins support cell imaging, protein detection and the immunoassay work that underlies molecular diagnostics. ELISA MAX kits and the broader ELISA range quantify specific proteins by immunoassay, a standard readout across immunology and cell biology.

Several lines reach into higher-throughput and single-cell work. TotalSeq antibodies are oligonucleotide-conjugated reagents built for single-cell sequencing, a core method in modern genomics and proteomics where surface protein and gene expression are read from the same cell. LEGENDplex delivers bead-based multiplex immunoassays that measure many analytes from one sample, used widely in cytokine profiling and immune monitoring. LEGENDScreen supports large-scale antibody screening, MojoSort covers magnetic cell separation for cell culture and downstream analysis, and Flex-T reagents are MHC tetramers for studying antigen-specific T cells. LEAF and GoInVivo supply low-endotoxin and in-vivo grade antibodies for functional and animal studies. Taken together, these product families place BioLegend across flow cytometry, immunoassay, single-cell genomics and the cell biology reagents that feed protein purification and functional immunology.

Because these are consumable reagents rather than instruments, the way a buyer reads a listing differs from reading a hardware specification. Catalogue number, clone, format, conjugate and lot are the fields that decide whether a reagent matches a protocol, and those sit on the individual detail pages rather than at the brand level.

Which BioLegend listings appear on Questpair?

The Questpair catalogue holds 86 BioLegend items from 9 verified suppliers and distributors across 4 countries. All of these are listed as used, with 100 percent of the listings carrying that condition, which for reagents makes lot history and storage the detail to check on each page. Listed prices run from EUR 178 to EUR 33.884, and the average listing sits at EUR 14.665. That range reflects a catalogue that holds both single antibody reagents at the low end and complete multiplex assay systems at the high end.

Where a buyer needs a warranty on a particular item, it is often possible and is arranged in consultation for that specific listing. Parts and related consumables can be sourced via Questpair, and for documentation a buyer can contact Questpair directly, where specialists respond within one hour. The brand and category pages here function as the catalogue for BioLegend on the marketplace, so the listings themselves are the starting point for matching a reagent line to the work in hand.

Questpair review of BioLegend

Our take based on listings data and supplier feedback

BioLegend occupies a specific position in the life sciences supply market: an antibody and reagent house built for biomedical research rather than a general laboratory equipment maker. That focus shapes what a buyer finds on the Questpair catalogue, where 86 items are listed from 9 verified suppliers and distributors. The three benefits above each reflect a different part of that reagent range, and each is worth examining against what the listings actually hold.

The flow cytometry reagents are the first thing a research buyer tends to look for. The Brilliant Violet dyes extended the number of fluorophores that could sit in a single panel without spectral overlap, and the newer StarBright dyes serve the same purpose for spectral cytometry. These reagents are consumables rather than instruments, so condition works differently here than it does for hardware: the whole catalogue is listed as used, with 100 percent of the listings carrying that status. For reagents a buyer should read that against lot numbers and storage history on the individual listing, which is where the detail that matters sits.

The second benefit points to the platform reagents, and this is where BioLegend's catalogue reaches beyond simple antibody vials. TotalSeq oligonucleotide-conjugated antibodies feed single-cell sequencing workflows, allowing surface protein data to be read alongside the transcriptome in the same run. LEGENDplex supplies bead-based multiplex immunoassays that quantify many analytes from one small sample, and LEGENDScreen offers antibody screening at scale. These are systems rather than single reagents, which is part of why the listed prices span such a wide range. A buyer evaluating these lines is usually matching a specific panel or analyte set to an experiment, so the useful comparison is not between brands but between configurations within the BioLegend range itself.

The third benefit concerns price transparency, and the figures carry it. Listed items run from EUR 178 to EUR 33.884, with an average of EUR 14.665. That spread is what you would expect from a catalogue that holds both single antibody reagents and complete multiplex assay systems, and the visible range lets a buyer place a given listing before making contact. Where warranty matters for a particular item, it is arranged in consultation for that specific listing rather than set centrally.

What a review of this brand comes down to is fit. BioLegend does not make centrifuges or spectrometers; it makes the reagents those instruments run on, and the Questpair listings reflect a reagent catalogue rather than a hardware one. For a lab already running flow cytometry, ELISA or single-cell work, the question is whether the specific line and lot on offer match the protocol in hand. The listings and their detail pages are where that question gets answered, and the price and condition tokens above give the frame a buyer needs before opening one.

**Flow cytometry reagents from a research-grade catalogue**

BioLegend antibodies and dyes include the Brilliant Violet and StarBright lines used across multicolour flow cytometry panels, listed on Questpair from 9 verified suppliers and distributors.

**Single-cell and multiplex platforms in one place**

The TotalSeq and LEGENDplex lines cover single-cell sequencing and bead-based multiplex immunoassays, with 86 items drawn from across the maker's reagent range.

**Reagent pricing documented across the full spread**

Listed items run from EUR 178 to EUR 33.884, so a buyer can see the distance between single reagents and complete assay systems before contacting a seller.