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 follow the pathway a compound is studied under in the published literature, not any outcome. 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.
Laboratory supplies
Prices are in pounds sterling. Delivery is free on every UK order.
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.
Questions
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. They are not medicinal products within the meaning of the Human Medicines Regulations 2012, not medical devices, and not foods, food supplements or cosmetics. Nothing we sell has been assessed or authorised by the MHRA. Our products are not for human or animal consumption or administration and not for any clinical or diagnostic use, and we do not provide dosing or reconstitution instructions. The buyer is responsible for risk assessment, handling, storage and disposal, and for every legal duty that applies to their own work, including COSHH.
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.
Delivery is free and tracked on every UK order. We ship within the United Kingdom only and do not export. The storage temperature is printed on the vial label, so move material to cold storage as soon as it arrives. We do not provide preparation, reconstitution or administration guidance.
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