Read the certificate before you order
Master Biolabs supplies peptides and reference reagents for laboratory research. Every batch is analysed by an independent laboratory, and the batch number printed on the vial matches the certificate you can open on this site.
Independently tested
Every batch is analysed by a laboratory we do not own.
Batch traceable
The number on the vial is the number on the certificate.
Certificate published
Read the analysis before you place the order.
Secure UK checkout
Encrypted payment and free tracked UK delivery.
Shop by category
Categories group each compound by its structure: chain length, chemical modification or compound type. Everything on this site is supplied for laboratory research use only.
Why Master Biolabs
Everything we say about a batch is something you can check from its certificate. No figure on this site that you cannot trace back to an independent laboratory report.
Identity and purity are confirmed by an independent laboratory. We do not report on our own material.
The certificate is published before you order and travels with the shipment, matched to the batch number on your vial.
Product, batch, certificate and order stay linked, so we can tell you exactly which batch filled your order.
Stored cold until dispatch, packed insulated and tracked to your door. We ship within the United Kingdom only.
In stock now
Every vial leaves with its batch number printed on the label, so the material on your bench can be matched back to the certificate it was released against.
Lab Supplies
Quality and testing
Nothing is listed on a supplier’s word. Every batch is run on two separate methods by an independent laboratory, and reaches the catalogue only once both results agree.
A new batch is logged, held apart from sellable stock and sampled.
C18 separation, detection at 214nm. The peak area is the purity figure we publish.
Measured molecular mass has to match the sequence on the label, or the batch fails.
Chromatogram, endotoxin and heavy metal screens, published against the batch number.
The laboratory name, the method detail, the chromatogram, the endotoxin screen and the heavy metal screen appear in full on every certificate we publish. A safety data sheet is available for every product.
Research notes
Method notes, documentation explainers and handling guidance, written by the people who run the assays and sign off the paperwork.
Research Guides
Good laboratory practice for storing, reconstituting and handling lyophilised research peptides, from arrival and cold [...]
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Research Guides
A step by step guide to reading a peptide certificate of analysis: batch numbers, LC-MS [...]
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Research Guides
How peptides are used as defined reagents in in vitro research, how study types differ, [...]
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Research Guides
What research use only means for UK buyers of research peptides, how the Human Medicines [...]
Read moreQuestions
The questions we are asked before a first order, answered plainly. If yours is not here, we will answer it directly.
Laboratory research and development only. Our products are not medicinal products under the Human Medicines Regulations 2012, have not been authorised by the MHRA, and are not for human or animal use or any clinical purpose. Buyers are responsible for safe handling, storage, disposal and COSHH compliance.
Accounts are open to people aged 18 or over buying on behalf of a research institution, laboratory or business, working in a controlled research environment. We do not sell to the general public, we may ask for institutional details before releasing a first order, and we may decline any order at our discretion.
Each batch is analysed by an independent laboratory using RP-HPLC on a C18 column with detection at 214nm, with LC-MS identity confirmation, an endotoxin screen and a heavy metal screen. The purity figure on the certificate is the figure that laboratory reported for that batch.
Every vial is printed with a batch number. Enter it in the batch search on our certificates page to open the matching certificate of analysis. A safety data sheet is available for every product.
Still deciding? Send us the question and we will answer it directly.
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Restricted
Master Biolabs supplies batch tested reference material to qualified buyers only. Confirm both statements below to reach the catalogue.
All material is supplied for laboratory research use only. It is not a medicinal product and is not licensed by the Medicines and Healthcare products Regulatory Agency. See our research use policy and terms of sale.
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