Frequently Asked Questions

Can I buy research peptides in the UK?

Yes. Research peptides can be purchased legally in the UK for laboratory research purposes only. At Imperial Peptides UK, all products are clearly labelled “For Research Use Only – Not for Human Consumption”, in line with MHRA guidelines.
What are research only peptides?

Research peptides are small chains of amino acids, the building blocks of proteins. Scientists join amino acids together using a special link called a peptide bond. By changing the order of amino acids, researchers can create peptides with different properties to study in the lab.

How are peptides made in the lab?

Most peptides are made using a method called solid-phase peptide synthesis (SPPS). In simple terms:

  1. The first amino acid is fixed onto a solid support (like a bead).
  2. Other amino acids are added one at a time in the right order.
  3. Special protective steps stop the wrong parts of the amino acids from reacting.
  4. At the end, the finished peptide is released and cleaned.

This step-by-step method allows scientists to create high-purity peptides for experiments.

⚠️ Important note:

These products are supplied for laboratory research only. They are not medicines and must not be used by humans or animals.
What are the most commonly researched peptides in the UK?

Researchers in the UK study a wide range of peptides: CJC-1295, BPC-157, MOTS-C, TB-500, SEMAX for laboratory applications, including signalling peptides, metabolic peptides, and growth-factor-related compounds. All products supplied by Imperial Peptides UK are intended strictly for research use only.
Why should I buy from Imperial Peptides UK?

Because we believe trustworthy research starts with trustworthy suppliers. That’s why Imperial Peptides exists — to give researchers confidence through quality, transparency, and compliance. We provide high-purity, research-use-only peptides with Certificates of Analysis, secure UK-based operations, and fast delivery, so you can focus on advancing discoveries without uncertainty.
Do your peptides contain mannitol?

All our peptides contain trace amounts of mannitol, a common excipient used to improve stability, solubility, and handling. It protects the peptide during freeze-drying and storage, helps it dissolve more easily when reconstituted, and ensures the vial is not visually empty despite the small peptide quantity.
How long does delivery take for UK peptide orders?

All orders are dispatched the next working day. We use Royal Mail Tracked 24 for all shipments to ensure full end-to-end tracking and improved reliability.

Royal Mail Tracked 24 → usually delivered the next working day
(Estimated by Royal Mail)

You’ll receive a tracking number as soon as your order is dispatched.

⚠️ Please note: delivery times are Royal Mail estimates and may vary during busy periods.
Where are your peptides manufactured?

Our peptides are produced by experienced international manufacturing partners using solid-phase peptide synthesis (SPPS).

To ensure quality and consistency, every batch is:

  • Independently tested by HPLC
  • Supplied with a full Certificate of Analysis (CoA)
  • Clearly batch labelled for traceability
  • Subject to final inspection and quality checks in the UK before release to customers

By focusing on independent testing and verification, we ensure that researchers receive high-purity, reliable peptides for their work.

⚠️ Note: All products are supplied strictly for laboratory research use only (RUO). Not for human or veterinary use.
How should I handle and store my peptides?

Quick Guide (Research Use Only):

Handling

  • Let vials warm to room temperature before opening (prevents moisture).
  • Work in a clean environment and only take what you need.

Storage

  • Keep lyophilised peptides at –20°C or lower, in sealed containers with desiccant.
  • Protect from moisture, heat, and light.
  • Avoid repeat freeze–thaw cycles.

Reconstitution

  • Less stable than freeze-dried form.
  • Store in refrigeration (2–8°C) for short-term use.

⚠️ Important: For laboratory research only. Not for human or veterinary use.
Do you sell peptide blends like Ipamorelin and CJC-1295 in the UK?

We do not offer blended peptides (e.g. combinations such as Ipamorelin with CJC-1295 / Mod GRF).

There are several reasons for this:

  • Scientific accuracy – Blends often use fixed ratios that may not be appropriate for most research applications.
  • Dosing clarity – When peptides are combined in one vial, the exact microgram content of each component cannot be measured accurately, which may compromise results.
  • Research flexibility – Purchasing peptides separately allows you to control the precise amount of each peptide you use. For example, you can combine 100 mcg of Peptide A with 100 mcg of Peptide B in the same experiment, ensuring accuracy and reproducibility.
  • Cost considerations – Blends are not necessarily cheaper. Buying peptides individually usually provides better value and reliability.

Our recommendation: Acquire peptides separately. This ensures your research remains accurate, reliable, and scientifically valid.

⚠️ Important: All products are sold for laboratory research use only. Not for human or veterinary use.
Do you provide a certificate of analysis (CoA) with your products?

Yes. Each peptide batch is accompanied by a Certificate of Analysis (HPLC), so researchers can verify quality
What purity are your peptides?

Our peptides are typically supplied at ≥99% purity (HPLC tested). Specific purity values are provided on the CoA for each batch.
How do I identify the batch number on my peptide vial?

Each peptide vial is clearly labelled for traceability and quality control.

  • The Batch Number is shown as a combination of the SKU code + expiry date.
  • Example: BPC10-03/27 → where BPC10 is the SKU and 03/27 indicates the expiry date (March 2027).
  • This batch number links directly to the Certificate of Analysis (CoA) for your vial.

Always quote the batch number when contacting us about quality, testing, or product enquiries.

⚠️ Important: All products are supplied strictly for laboratory research use only.
How are batch numbers and packaging handled when products are restocked?

As part of our inventory management process, stock from a verified batch may be released in stages following internal checks and reconciliation. This means additional units can become available under the same batch number after a restock.

Vial cap colours may vary between units due to packaging component availability during synthesis. These variations are part of normal inventory and supply management and do not affect the product contents, quality, or batch traceability.

All products are batch-controlled, stored under appropriate conditions, and supplied strictly for laboratory research use only.
What is a peptide reconstitution calculator?

A peptide reconstitution calculator is a simple tool used to work out diluent volumes and peptide concentrations. Our free online UK peptide calculator makes it easy to calculate reconstitution volumes and dose measurements for laboratory use.

Who can use this calculator?

This calculator is designed for researchers, labs, and life sciences professionals in the UK and internationally. It is strictly intended for Research Use Only (RUO) and not for human or veterinary consumption.

What units does the calculator support?

The tool supports milligrams (mg), micrograms (mcg), and millilitres (mL). It also works with standard syringe scales, including U-100 and U-50 insulin syringes, making it a versatile peptide reconstitution calculator for lab protocols.

Can I use this calculator for IU conversions?

Yes. If your peptide has a known IU per mg conversion factor, you can enter it to calculate IU per dose and per unit. This feature makes it easier to handle reconstitution calculations for certain research peptides.

Is this calculator suitable for medical dosing?

No. This tool is provided purely as a research calculator. It is not designed for medical dosing and must not be used for human or veterinary applications.
What is a peptide mixing solution?

A peptide mixing solution is a sterile diluent used to reconstitute lyophilised peptides into liquid form for laboratory research.

Storage: Store at 20–25°C in a dry, light-protected environment

After opening: Store at 2–8°C
Is Research Sciences connected to Imperial Peptides UK?

Yes. Research Sciences is the parent company of Imperial Peptides UK. Imperial Peptides UK continues to operate as a brand, while Research Sciences provides expanded research infrastructure and listings.
What is Pay-By-Bank?

Pay-By-Bank is a secure payment method that allows you to make a direct bank transfer using your online banking app. It uses UK Open Banking technology, regulated by the Financial Conduct Authority (FCA).

You authorise the payment directly with your bank. No card details are shared.

How does Pay-By-Bank work?

  1. Select Pay-By-Bank at checkout
  2. Choose your bank
  3. Log in to your banking app or online banking
  4. Approve the payment
  5. You’re instantly returned to our website

Payments usually confirm immediately.

Is Pay-By-Bank safe?

Yes. Pay-By-Bank is one of the most secure payment methods available in the UK.

  • Regulated by the FCA
  • Uses your bank’s own authentication (biometrics, PIN, or passcode)
  • We never see or store your banking details
  • No card fraud or chargeback risk

Many UK banks actively recommend Open Banking payments.

Why don’t you accept card payments?

Research-use-only scientific materials fall into high-risk merchant categories, which makes card processing more restrictive and frequently reviewed.

Pay-By-Bank allows us to:

  • Keep prices competitive
  • Avoid unnecessary card processing delays
  • Maintain uninterrupted service to UK researchers

This is common across the scientific research supply sector.

What banks support Pay-By-Bank?

Most major UK banks support Open Banking, including:

  • Barclays
  • Lloyds
  • HSBC
  • NatWest
  • Santander
  • Monzo
  • Starling

If your bank is supported, it will appear at checkout automatically.

Do you store my bank details?

No.

We never store:

  • Bank login details
  • Account passwords
  • Security codes

All authorisation happens inside your bank’s own environment.