General Information
Which CDMO partners are commonly referenced in peptide research?
In the world of research peptides and longevity science, independent contract development and manufacturing organizations (CDMOs) serve as the backbone of innovation. These pure-play scientific research providers focus exclusively on API process development, custom synthesis, analytical services, and high-purity GMP production — without the distractions of integrated drug marketing or big-pharma ownership. For laboratories, academic teams, and independent investigators exploring cellular regeneration, mitochondrial efficiency, and metabolic pathways, knowing the most scientifically active CDMOs is essential.
We therefore compiled this introductory overview based on the estimated frequency of scientif publications in 2025 (drawn from peer-reviewed journals such as Organic Process Research & Development and related process-chemistry literature). The overview highlights companies whose R&D output, methods sections, and supplied materials appear most often in the literature — a direct indicator of reliability, reproducibility, and cutting-edge expertise that aligns with the high standards of European-made research peptides offered here at PeptideRegensis.com.
WuXi STA (WuXi AppTec) (China) is a global CRDMO platform delivering end-to-end API process research, custom synthesis, development, and commercial manufacturing for small molecules and complex chemistries, supporting more than 420,000 new compounds annually across Asia, North America, and Europe. Researchers frequently cite its scalable platforms in modern peptide-adjacent synthesis papers. Official site: https://sta.wuxiapptec.com/
Asymchem Laboratories (China) specializes in innovative, green, and cost-effective API process development, custom synthesis, and clinical-to-commercial manufacturing. Its state-of-the-art facilities excel with small-molecule intermediates and high-potency compounds, making it a frequent reference point for sustainable peptide-related chemistries. Visit: https://www.asymchem.com/
Porton Pharma Solutions (China) provides efficient and flexible API R&D, process optimization, custom synthesis, and cGMP manufacturing from pre-clinical to commercial scale, with a strong emphasis on crystallization and integrated technical services. Its approach has produced notable 2025 joint publications that resonate with longevity-research workflows. Official site: https://www.portonpharma.com/en
Bachem Holding AG (Switzerland) is Europe’s peptide powerhouse and the global leader in peptide and oligonucleotide APIs. It offers custom synthesis, process research, and scalable GMP production with over 50 years of specialized expertise — ideal for researchers seeking high-purity sequences for tissue repair, neuroplasticity, and cellular regeneration studies. Website: https://www.bachem.com/
Lonza Group AG (Switzerland) is an industry-leading drug-substance CDMO known for flexible API process development, manufacturing, and high-potency capabilities across small molecules and complex technologies. Its contributions frequently appear at the interface of biologics and peptide chemistry, supporting biotech clients from early-phase discovery through commercial supply. Learn more at: https://www.lonza.com/
Siegfried Holding AG (Switzerland) brings 150+ years of heritage to API process development, custom synthesis, and commercial-scale manufacturing. It delivers seamless technology transfers that researchers rely on for reproducible longevity compounds. Official site: https://www.siegfried.ch/
Cambrex Corporation (USA) is a global CDMO specializing in custom small-molecule API manufacturing, high-potency compounds, and end-to-end process research from preclinical to commercial stages. Its advanced
containment and continuous-processing expertise make it a valued reference in high-impact peptide-adjacent publications. Visit: https://www.cambrex.com/
CordenPharma International (Germany/Italy/US) is a full-service GMP CDMO offering integrated development and manufacturing for peptides, HPAPIs, small molecules, and complex modalities. Its broad volumetric capacity and end-to-end supply-chain solutions are regularly cited in literature
focused on scalable regeneration therapies. Website: https://cordenpharma.com/
Curia Global (USA, formerly AMRI) brings 30+ years of expertise in small-molecule API discovery, chemical development, custom synthesis, and cGMP manufacturing — including potent compounds and sterile APIs. It remains a consistent presence in analytical and process-chemistry papers relevant to research peptides. Official site: https://curiaglobal.com/
Evonik Industries AG (Germany) is a leading CDMO for complex and highly potent APIs. Its process development, formulation, and sustainable manufacturing services, with a strong focus on parenteral technologies and large-scale HPAPI projects, provide valuable references for researchers working on advanced mitochondrial and metabolic modulators. Explore their offerings at: https://healthcare.evonik.com/
These organizations represent the most scientifically cited independent partners in the 2026 landscape. While Chinese leaders contribute heavily through enormous R&D scale, the Swiss and German firms continue to set benchmarks in peptide-specific quality and innovation. At PeptideRegensis.com we source and verify high-purity, European-manufactured research peptides
that meet the rigorous standards these CDMOs help establish — ensuring every batch you order supports reproducible, publication-ready results in science.
What does “research use only” mean?
“Research use only” (RUO) means that PRG products are supplied strictly for in vitro scientific research or further manufacturing within controlled laboratory environments.
They are not intended for clinical, diagnostic, therapeutic, personal, human, or animal use. All materials are designed exclusively for professional research applications.
What are research peptides and small molecules?
Research peptides and small molecules are laboratory-grade compounds used to investigate cellular signaling, mitochondrial function, metabolic pathways, and longevity-related biological processes.
They are produced under controlled manufacturing standards and used exclusively in scientific environments to support experimental research.
Do you provide Certificates of Analysis (COA)?
All PRG research materials are analytically tested for identity and purity in accordance with EU laboratory standards.
Manufacturer Certificates of Analysis (COAs) are available upon request.
Additional verification and guarantees related to independent testing are outlined in our Refund Policy.
Are your products high-purity?
Yes. PRG supplies high-purity, European-manufactured research compounds.
Each batch undergoes analytical testing to verify identity and purity before distribution, ensuring consistency across laboratory applications.
Where are your peptides manufactured?
All PRG compounds are manufactured in Europe under advanced quality systems.
Each product undergoes analytical validation and purity testing to support consistent, research-grade quality.
What are your products used for?
All PRG products are supplied strictly for research purposes (Research Use Only – RUO).
They are not intended for human or animal use, medical treatment, or diagnostic applications.
We do not provide:
- dosage guidance
- medical advice
- treatment recommendations
Pen & Vial Information
What is the difference between a pen and a vial?
Pen: pre-filled delivery system
Vial: powder format requiring reconstitution
How much material is in one pen?
The total amount depends on the specific product.
Please refer to the product label or description for exact content (e.g., 10 mg, 20 mg, etc.).
How many clicks are in one pen?
Pens contain approximately:
~300 clicks per cartridge.
How much does one click represent?
Click-based systems measure volume, not a fixed amount of compound.
To estimate the amount per click, use the following formula:
Total mg in pen ÷ total number of clicks = mg per click
Example calculation
If a pen contains:
- 20 mg total
- 300 clicks
Then: 20 ÷ 300 = ~0.067 mg per click
For a quicker estimate of click-to-mg conversion based on total content and cartridge volume, you can also use our:
Important note about clicks
Clicks represent volume, not an exact standardized dose.
Actual values are always approximate and depend on the total content of the pen.
What is the cartridge volume?
Each pen cartridge typically contains:
3 mL total volume
What does the “260” marking on the pen mean?
The “260” marking refers to the mechanical scale of the device, not the amount of compound (mg).
It does not indicate total content or dosage.
Do you provide usage instructions?
No. We do not provide usage instructions, as all products are strictly intended for laboratory research purposes.
How does the pen mechanism work?
Clicks adjust the delivered volume
Delivery occurs via a single press
The mechanism resets during operation
Are needles included?
Yes, a limited number of needles are included with the pen.
Additional needles can be obtained from pharmacies.
Storage
How should research peptides be stored?
Proper storage is essential to maintain compound stability and integrity in laboratory settings.
Storage of vials (lyophilized powder)
Before reconstitution:
- Store in a freezer (recommended)
- Keep protected from light and moisture
After reconstitution:
- Store in a refrigerator (2–8°C)
- Avoid repeated temperature fluctuations
- Use within a reasonable timeframe depending on research conditions
Storage of pre-filled pens
- Always store in a refrigerator (2–8°C)
- Do not freeze
- Keep protected from light
Are products shipped under temperature control?
Yes. All temperature-sensitive products are shipped using:
- Insulated packaging
- Ice packs (when required)
This helps maintain stability during transit.
Do temperature changes during shipping affect product quality?
Short-term temperature variations during shipping are generally tolerated when proper packaging is used.
Products are packed to preserve stability under normal transit conditions.
Important handling considerations
Avoid repeated freeze–thaw cycles
Store products immediately upon delivery
Keep containers sealed when not in use
Minimize exposure to heat and direct light
Shipping
Do you ship internationally?
Yes. PRG offers secure, tracked worldwide shipping.
Please note: shipping is not available to the United States.
For more shipping information, please visit our Shipping Policy.
How long does shipping take?
Orders are typically processed within 24 hours on business days.
Estimated delivery times:
- EU: 2–5 business days
- International: 3–14 business days
For more shipping information, please visit our Shipping Policy.
How much does shipping cost?
The exact cost is calculated at checkout.
For more shipping information, please visit our Shipping Policy.
Will I receive a tracking number?
Yes. A tracking number is provided for every order once it has been dispatched.
Do you ship to parcel lockers?
Currently, we only offer home delivery.
Where do you ship from?
All orders are shipped from within the European Union.
This means no customs duties apply for EU deliveries.
Orders & Payment
What payment methods do you accept?
We currently accept:
- Major credit and debit cards
Additional payment methods will be added soon.
Can I modify my order?
Yes, as long as the order has not yet been processed for shipment.
Will I receive an invoice?
Yes. An invoice is included in the shipping confirmation email.
Do you accept returns?
Due to the sensitive nature of laboratory research materials, PRG does not accept returns once products have been supplied.
If a shipment arrives damaged or does not meet published specifications, please contact our support team. Verified cases may be eligible for resolution in accordance with our Refund Policy.
Other Questions
Do you offer phone support?
Currently, we provide support exclusively via email.
Where can I ask additional questions?
Our support team is available 24/7 via email and will respond to your inquiries as soon as possible.
For further inquiries, please visit our conatct page: Contact Us