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Premium Research Peptides

Tested. Verified. Trusted. Nupex peptides are formulated for research, produced and scientifically verified, and backed by third-party lab data to ensure that you can trust the accuracy, consistency, and integrity of every compound.

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HPLC-Tested for Verified Purity

Scientifically verified

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& International Shipping

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What Our Customers Say

Game changer for recovery

Really impressed with the service and purity. The TB-500 capsules in particular have been a game-changer for my recovery protocol. Definitely feels a cut above the rest.

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Mark T

Verified Buyer

Easily the best UK supplier!

I’ve tested products from several UK suppliers, and Nupex easily stands out. Everything is clearly labeled, lab-tested, and arrived within 48 hours. Zero issues, which is rare.

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Alex M

Verified Buyer

Peace of mind with purity

As someone who values precision and consistency, I really appreciate the transparency Nupex offers. Being able to verify purity before ordering gives me full peace of mind.

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Emma D

Verified Buyer

third-party lab tested

Optimised for Precision.
Built for Research Integrity.

Every Nupex compound is third-party tested, transparently produced, and aligned with peer-reviewed research. Though intended for research use only, many peptides are actively studied for their cognitive, metabolic, and longevity potential.

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HPLC-Tested for Verified Purity

100% verified purity with lab reports

Every peptide is tested using HPLC and Mass Spectrometry to confirm purity and potency. We provide lab reports for every batch, and cover third-party testing costs upon request—so you can purchase with complete confidence.

Manufactured for research consistency

Strict quality protocols for research-grade quality

Ethical & Transparent

Science-led. No inflated claims

Next Day Delivery (UK)

Same-day dispatch

Reliable International Shipping

100% verified purity with lab reports

Expert Customer Support & Education

Fast, knowledgeable UK-based support

Become a Trade Partner

Unlock exclusive benefits with a Nupex Trade Account:

Bulk Discounts – Competitive pricing for high-volume orders

Priority Order Processing – Fast dispatch to keep your research on track

Dedicated Support – Personalised service for your business needs

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Or call us: 01202 155688

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Safety Disclaimer!

Our peptides are exclusively intended for research purposes and are not authorised for use in humans or animals.

We are aware that a small portion of the community may attempt to self-administer peptides purchased online, especially those which originate outside of the United Kingdom where manufacturing processes are somewhat unregulated. We strongly advise against such practices due to the significant health risks involved. Without proper knowledge and verification of the chemical composition, the safety and efficacy of these substances cannot be guaranteed. It is crucial to use peptides responsibly within a controlled research environment to ensure both personal safety and the integrity of your scientific work.

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Still have questions?

FAQs

What is NUPEX, and what products do you supply?

Where is NUPEX located, and how long have you been supplying peptides?

How do I contact NUPEX for enquiries and customer support?

Are NUPEX peptides suitable for laboratory research purposes only?

How do I calculate the correct dosage for a speciﬁc peptide?

All peptides supplied by NUPEX are strictly intended for laboratory and research use only. As such, dosage calculation refers exclusively to determining precise concentrations required for controlled experimental conditions.

To accurately calculate peptide concentration for your research:

Identify the peptide quantity:
Refer to the product label provided by NUPEX, which clearly indicates the amount of peptide present in milligrams (mg).
Reconstitution of the peptide:
Typically, peptides are supplied in a lyophilised (freeze-dried) powder form and
must be reconstituted with an appropriate sterile solvent, commonly
bacteriostatic water or sterile distilled water.
(Note: Always confirm the optimal solvent based on peptide properties and
research guidelines.)
Calculate peptide concentration:
Peptide concentration can be calculated using the following formula:

Peptide Concentration (mg/ml)=Total peptide weight (mg)Volume of solvent adde
d (ml)\text{Peptide Concentration (mg/ml)} = \frac{\text{Total peptide weight
(mg)}}{\text{Volume of solvent added
(ml)}}Peptide Concentration (mg/ml)=Volume of solvent added (ml)Total peptide
weight (mg)

For example, if your vial contains 5 mg of peptide and you add 2 ml of solvent,
the peptide concentration would be:

5 mg2 ml=2.5 mg/ml\frac{5\,\text{mg}}{2\,\text{ml}} = 2.5\,\text{mg/ml}2ml5mg
=2.5mg/ml
Conversion to micrograms (μg):
If your research protocol requires peptide concentrations in micrograms (μg),
remember:
1 mg=1000 μg1\,\text{mg} = 1000\,\text{μg}1mg=1000μg
Therefore, 2.5 mg/ml would equal 2500 μg/ml.

Important Note:
NUPEX peptides are provided exclusively for research and laboratory purposes. We are
unable to provide guidance or advice regarding the administration, injection, or human
usage of peptides. It is the researcher's responsibility to adhere to all local regulations,
safety protocols, and ethical guidelines when conducting research involving peptides.

For further technical or product-related enquiries, please contact NUPEX customer
support.

Why does my peptide vial appear nearly empty upon arrival?

Peptides supplied by NUPEX are provided in lyophilised (freeze-dried) powder form, significantly reducing their volume while enhancing stability during storage and shipping. Lyophilisation removes all moisture, resulting in a highly concentrated, very fine powder. Consequently, the amount of powder in the vial might seem minimal, often not fully covering the base of a standard laboratory vial.

We can confirm the peptide quantity stated on your vial is accurate. For example, if your order specifies precisely 5 mg of peptide, this amount is exact. To maintain stability and protect the delicate amino acid structure of peptides such as, we combine 5 mg of the peptide with 45 mg of mannitol as a stabilising agent, resulting in a total of 50 mg of powder. To illustrate this further, consider that a teaspoon of sugar weighs approximately 4,000 to 5,000 mg; thus, the total 50 mg content in your vial represents only a tiny fraction of this, explaining why it may visually appear minimal.

Your previous experiences may have involved peptides purchased online that were incorrectly labelled or counterfeit. Such products are commonly machine- filled with significantly larger quantities—often over 800 mg—of wet or damp powder that settle densely at the bottom of the vial. These products are invariably compromised and non-viable, as genuine peptides lose integrity when packaged under moist conditions.

Please rest assured that NUPEX peptides are meticulously measured with laboratory balances calibrated multiple times daily, maintaining an accuracy tolerance of ±0.0001 mg. Each vial is manually filled by trained laboratory technicians at the time your order is prepared, ensuring precise and accurate measurements.

If you require further clarification or support, please contact NUPEX customer support directly.

Important Note: All peptides from NUPEX are strictly intended for research and laboratory use only and should always be handled in accordance with laboratory safety guidelines and applicable regulations.

What should I do if the peptide powder is stuck to the sides of the vial?

Why is the peptide supplied in such a large vial?

Peptides supplied by NUPEX are provided in lyophilised (freeze dried) powder form to ensure optimal stability, purity, and longevity during storage and transportation. During the lyophilisation process, moisture is removed, leaving behind a small amount of fine, highly concentrated powder. Although this powder often occupies minimal volume, larger vials are deliberately chosen for several important practical reasons:

Sterilisation and Safety:
Our 20 ml vials undergo a rigorous sterilisation process prior to being manually filled by trained laboratory technicians. Smaller chromatography vials typically cannot withstand the same stringent sterilisation methods, and thus pose potential contamination risks for peptide samples.

Durability and Storage Requirements:

Larger vials are specifically designed to withstand prolonged storage at very low temperatures (such as -20°C or -80°C). In contrast, smaller chromatography vials are not suitable for such freezing conditions and may crack or split open, compromising the peptide's quality and integrity.

Ease of Handling and Reconstitution:
The larger vial size provides researchers sufficient space to safely add solvents or buffers without spillage or contamination, enabling accurate and efficient peptide reconstitution.

Effective Lyophilisation Process:
The freeze-drying procedure involves creating a vacuum inside the vial. Larger vials help optimise moisture removal and ensure complete drying of the peptide powder, preserving peptide integrity and stability.

Reducing Static and Product Loss:

Larger vials help minimise static charge buildup, reducing the amount of powder adhering to the vial walls and thereby ensuring maximum peptide recovery. Please rest assured that the quantity stated on your NUPEX peptide vial is precisely measured, with our balances calibrated multiple times daily to maintain exceptional accuracy.

Should you require further assistance or additional information, please contact

NUPEX customer support directly. Important Note: All peptides supplied by NUPEX are strictly for laboratory research purposes only and must always be handled in accordance with appropriate safety standards and regulatory guidelines.

What is the correct way to store peptides to ensure optimal stability?

Proper storage is essential to maintain the stability, purity, and integrity of peptides. NUPEX peptides are supplied in lyophilised (freeze-dried) powder form specifically designed for extended shelf life. To achieve optimal peptide stability, please follow the recommended guidelines below:

Storage of Lyophilised (Freeze-Dried) Peptides:

Temperature:

Store lyophilised peptides at -20°C for short- to medium-term storage (up to several months). For long term storage exceeding six months, storage at -80°C is strongly advised.

Protection from Moisture and Light:

Always store peptides in sealed, airtight vials away from moisture, sunlight, or strong artificial light to preserve their integrity and prevent degradation.

Storage of Reconstituted (Mixed) Peptides:

Do Not Refreeze After Reconstitution:

Once peptides have been reconstituted (mixed) with water or an appropriate solvent, they must not be refrozen. Refreezing can cause the vial to crack or split due to expansion pressure from freezing liquids, compromising the peptide and posing a safety risk.

Refrigeration after Reconstitution:

Reconstituted peptides should be stored at +2°C to +4°C (standard refrigeration temperatures). Under these conditions, peptides typically remain stable and suitable for laboratory use for approximately 20 to 30 days.

Labelling for Reference:

Clearly label reconstituted vials with peptide name, concentration, date of reconstitution, and storage conditions to ensure accurate tracking and consistent research results.

General Recommendations:

Ensure all peptide vials remain securely sealed when not in use to prevent contamination or moisture ingress.

Handle peptides using sterile laboratory techniques and protective gloves to maintain product purity.

Always adhere to any additional storage instructions provided with your specific NUPEX peptide product.

By carefully following these storage guidelines, you will preserve peptide stability and integrity, ensuring reliable and consistent results in your research activities. Should you require further information or assistance, please contact NUPEX customer support directly.

Important Note:

All peptides supplied by NUPEX are strictly intended for laboratory research purposes only. Always handle peptides according to applicable safety guidelines, laboratory standards, and regulatory requirements.

Why is the GHK-Cu peptide powder white instead of blue or green?

What does it mean when a peptide is described as 'tagged'?

How can I place an order on NUPEX's website?

At NUPEX, we are committed to providing a seamless and secure ordering experience for our customers. To place an order for our medical-grade research peptides, please follow these steps:

Account Registration:
- Visit our website at www.nupex.co.uk.
- Click on the "Register" or "Create Account" link.
- Complete the registration form with your professional and institutional details. Please note that NUPEX supplies products exclusively to verified research professionals and organisations.
- Submit the form and await account approval. Our team typically reviews and approves accounts within [insert timeframe], and you will receive a confirmation email once your account is active.
Product Selection:
- Log in to your approved account on our website.
- Browse our extensive catalogue of research peptides and related products. Detailed product descriptions, specifications, and pricing information are available to assist you in making informed selections.
- Add desired items to your shopping cart by clicking the "Add to Cart" button.
Review and Checkout:
- Once you have selected all necessary products, navigate to your shopping cart to review your order. Ensure that quantities and selections are accurate.
- Proceed to checkout by clicking the "Checkout" button.
Payment and Order Confirmation:
- Enter your billing and shipping information as prompted.
- Select your preferred payment method from the options available. NUPEX accepts [list accepted payment methods, e.g., major credit cards, bank transfers].
- Review your order summary and confirm all details are correct.
- Submit your order. You will receive an order confirmation email with your order details and an invoice for your records.
Order Processing and Shipping:
- Upon successful payment, your order will be processed and prepared for dispatch.
- You will receive a shipping confirmation email with tracking information once your order has been shipped.
- Delivery times may vary based on your location and selected shipping method.

Important Notes:

NUPEX supplies products exclusively for laboratory research purposes. All customers must be verified research professionals or affiliated with recognised research institutions.
If you encounter any issues during the registration or ordering process, or if you require assistance with product selection, please contact NUPEX customer support.
Ensure compliance with all applicable regulations and guidelines governing the use of research peptides in your jurisdiction.

By following these steps, you can efficiently place an order through NUPEX's website, ensuring timely access to high-quality research peptides for your scientific investigation

Where is NUPEX located, and how long have you been supplying peptides?

Do you offer bulk purchasing discounts at NUPEX?

Yes, NUPEX actively supports scientific research communities by offering bulk purchasing discounts on our medical-grade research peptides. We recognise that research projects often require substantial peptide quantities and aim to provide cost-effective, tailored purchasing solutions.

Bulk Purchasing Discounts:

Customised Pricing: For orders exceeding standard quantities, NUPEX offers personalised pricing structures. Discount rates depend on several factors, including peptide type, order volume, and purchasing frequency.

How to Inquire About Bulk Discounts:

Contact Our Sales Team: To discuss bulk purchasing and receive a customised quotation, please contact our dedicated sales team via:

Email: sales@nupex.co.uk

Telephone: 01202 155688

Provide Order Details: For an accurate quotation, please supply:

Specific peptide(s) required Desired quantities

Order frequency (one-off or recurring)

Special requests or modifications, if applicable

Receive Your Customised Quote: Our team will promptly respond with a tailored proposal, clearly detailing available discounts and terms.

NUPEX Affiliate Programme:

NUPEX also offers affiliate accounts, providing an opportunity for customers and professional partners to benefit financially by referring qualified researchers and

institutions to NUPEX. Affiliate members receive attractive incentives and ongoing support, promoting long-term, mutually beneficial relationships.

For details on becoming a NUPEX affiliate, please contact our team directly.

Additional Considerations:

Lead Times: Bulk orders may have extended processing times. Our team will advise you of estimated lead times upon quotation.

Quality Assurance: All bulk orders are subject to rigorous quality control processes to guarantee product purity and consistency.

Shipping and Handling: Multiple shipping options are available to accommodate bulk orders, and our team will help identify the most efficient and cost-effective

shipping solution.

By providing competitive bulk discounts and an attractive affiliate programme, NUPEX is dedicated to supporting your research endeavours efficiently and

economically.

For further enquiries or to request more information, please reach out directly to our customer support team.

Which payment methods does NUPEX accept?

Can I cancel or modify my order once placed with NUPEX?

Nupex.co.uk is a trading name of RESEARCH SCIENTIFIC LTD
107-111 Ringwood Road, Christchurch, United Kingdom, BH23 5RA
Company number 16181281

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