Somatropin 100
Recombinant growth hormone, 100 IU per click pen, for growth and recovery research.Each click delivers0.33 IUfrom a 3 mL · 300-click pen.
Featured in these stacks: Muscle Growth, Advanced Growth Stack.
how many clicks
for your dose?
ThisSomatropin 100pen holds100 IUacross 300 clicks, so each click delivers0.33 IU. Tap a dose or turn the dial; we'll count the clicks. For research reference only.
why81researchers chose this pen
chose it for the click dosing, no syringes, no unit maths.
verified purity, checked against the public COA before first use.
precise clicks in every 3 mL pen, the whole protocol in one barrel.
re-order or refer a colleague within three months.
about the
Somatropin 100pen
Recombinant human growth hormone, supplied in a 3 mL / 300-click pen dosed in international units, for research.
Certificate of analysis"Counted my clicks, done in ten seconds. No syringes, no unit maths, the dosing card lives on my desk now."
"Checked the batch number against the public COA before first use, matched to the decimal. That's why I switched."
"Arrived cold, packed like something precious. Temperature strip still green on arrival. Genuinely impressed."
why a pen beats
a vial & syringe
Traditional research peptides arrive as lyophilised powder that must be reconstituted, drawn into insulin syringes, and converted from milligrams to units by hand, every step a chance for a dosing error.
A multi-dose pen removes the whole failure chain. The peptide arrivesalready dissolved and calibrated. Attach a fresh needle, turn the dial until you count your clicks, and you're done, the same audible-click mechanism trusted in insulin and GLP-1 pens worldwide.
Pens travel and store better, too: no open vials, no bent needles, no septum contamination after repeated draws. One sealed barrel, ten sterile needles, one dosing card.
how to buy
peptides safely
The peptide market has a purity problem: independent surveys routinely find underdosed, mislabelled or contaminated product sold online. The only reliable defence isthird-party verification you can check yourself, not a supplier's own claims.
Before buying any peptide pen, ask three questions. Is every batch tested by an independent lab? Is the certificate of analysis available, so you can check your exact lot before first use? And does it ship cold-chain, insulated and gel-packed, so what was tested is what arrives?
Veyvora answers yes on every order, independent assay, a COA on request against the batch number, and cold dispatch within 24 hours, paperwork packed inside.
pairs well with
view all
Somatropin 100 IU Research Pen | Veyvora
By the end of this page you will know: what the Veyvora Somatropin 100 IU Research Pen contains and how its delivery mechanism works; what batch documentation to request before committing the material to a protocol; and what UK legal obligations apply to acquisition and onward supply.
Buy Somatropin Pen, Price, availability and checkout are listed on the Veyvora product page. Confirm current stock and pricing directly with Veyvora before ordering.
The Veyvora Somatropin 100 IU Research Pen is a recombinant 191-amino-acid somatropin growth hormone supplied in a 3 mL, 300-click pen format, labelled at approximately 0.33 IU per click, and intended strictly for in-vitro laboratory research use only. Pricing, live stock status and checkout availability are confirmed directly through the Veyvora product page; prospective buyers and distributors should verify current figures there before placing an order.
| Attribute | Detail |
|---|---|
| Active substance | Somatropin (recombinant human growth hormone) |
| Labelled total | 100 IU |
| Fill volume | 3 mL |
| Delivery mechanism | 300-click pen |
| Intended use | In-vitro laboratory research use only |
Somatropin is a prescription-only medicine (POM) in the United Kingdom under the Human Medicines Regulations 2012 [1]. Acquisition for research purposes must comply with applicable UK medicines law; the research-use-only designation does not override statutory supply requirements.
Key Takeaways
- The pen delivers recombinant 191-amino-acid somatropin at ~0.33 IU per click across 300 clicks, totalling 100 IU in 3 mL.
- Batch documentation, including a CoA, HPLC results, endotoxin report and sterility data, must be requested from Veyvora and verified before any in-vitro protocol begins.
- Somatropin is a prescription-only medicine under the Human Medicines Regulations 2012; a research-use-only label does not alter that classification or the supply obligations that follow from it.
- The pen ships pre-filled as a 3 mL solution (no reconstitution required); storage conditions and excipient composition are listed on each batch’s certificate of analysis, which should be verified for the specific batch received.
Product Identity and Scope
This pen format delivers recombinant 191-amino-acid somatropin, a recombinant protein with a sequence identical to endogenous human growth hormone, in a 3 mL, 300-click mechanism labelled at approximately 0.33 IU per click, designated strictly for in-vitro laboratory research use only. Pricing, live stock status and checkout availability are confirmed directly through the Veyvora product page; prospective buyers and distributors should verify current figures there before placing an order.
| Attribute | Detail |
|---|---|
| Active substance | Somatropin (recombinant human growth hormone) |
| Labelled total | 100 IU |
| Fill volume | 3 mL |
| Delivery mechanism | 300-click pen |
| Intended use | In-vitro laboratory research use only |
Acquisition for research purposes must comply with applicable UK medicines law under the Human Medicines Regulations 2012 [1]; the research-use-only designation does not override statutory supply requirements. Before first use, verify your batch against the public CoA to confirm the pen’s identity against its batch-linked documentation.
Verified Specifications
Specifications for the Veyvora Somatropin 100 IU Research Pen are drawn from Veyvora’s published product data; values not confirmed by a current operator document are marked for confirmation below.
| Specification | Veyvora-stated value | Status |
|---|---|---|
| Active substance | Somatropin (recombinant human growth hormone, 191 amino acids) | Stated by Veyvora (2026) |
| Labelled total | 100 IU | Stated by Veyvora (2026) |
| Fill volume | 3 mL | Stated by Veyvora (2026) |
| Delivery mechanism | 300-click pen | Stated by Veyvora (2026) |
| Click increment | ~0.33 IU per click | Stated by Veyvora (2026) |
| Excipients | See batch COA | Listed on the batch COA |
| Recombinant expression host | See batch COA | Listed on the batch COA |
| Reconstitution requirements | None — supplied pre-filled as a 3 mL solution pen | Verify the batch against its COA |
The pharmacopoeial identity standard for somatropin as a drug substance, covering peptide mapping, bioidentity, related proteins and host-cell impurities, is defined in the European Pharmacopoeia somatropin monograph maintained by the European Directorate for the Quality of Medicines (EDQM). That monograph describes the substance class; it does not validate any individual seller’s labelled presentation. Excipient composition and expression-host details must therefore come from Veyvora’s current batch documentation, not from the monograph itself, before the material goes into a controlled protocol.
Assay Methods and What They Confirm
For a precise account of what the principal assay method establishes, see what HPLC purity does and does not prove. Researchers comparing pen formats across the catalogue can review the Growth & Recovery Research Pens category for context, and post-receipt handling requirements that follow from the pen’s format are covered in Veyvora’s storage and stability guidance.
Batch Documentation and Analytical Evidence
Veyvora states that each batch is tested first by Asterion Analytics and then again by Veyvora’s own internal testing, using HPLC, mass spectrometry and endotoxin assay, and that every Somatropin 100 IU Research Pen ships with an independent, batch-specific certificate of analysis (CoA) confirming identity and content (Veyvora, 2026). Researchers should verify your batch against the public CoA before committing the material to a protocol.
What a Certificate of Analysis Can and Cannot Prove
A batch-linked CoA documents the results of specific analytical methods applied to a specific production lot. Its findings do not generalise to other batches and do not constitute regulatory approval or equivalence to a licensed medicinal presentation. Where UK laboratory testing is claimed, the relevant accreditation body is the United Kingdom Accreditation Service (UKAS), which accredits laboratories against named methods; UKAS accreditation of a testing facility does not endorse the peptide vendor or the pen format itself.
Confirming Documentation Before Use
Researchers should request the following from Veyvora before incorporating the pen into any controlled in-vitro protocol:
- The batch number printed on the received unit
- The corresponding CoA, including the analytical methods used and the laboratory that performed each test
- Confirmation of whether the testing laboratory holds UKAS accreditation for the relevant methods
- The date of analysis relative to the stated shelf life
- Written confirmation that no batch substitution occurred between order placement and dispatch
Any of these documents that cannot be produced for the exact batch received should be resolved before the material is used. Marketing copy and forum reports are not substitutes for primary batch documentation.
Handling and Storage
Verified handling and storage instructions for the Veyvora Somatropin 100 IU Research Pen are not available from confirmed live product data or batch documentation at the time of writing; the figures below must be confirmed directly with Veyvora before the pen is committed to any protocol.
What Authoritative Guidance Covers
Licensed somatropin presentations in the UK are governed by product-specific Summary of Product Characteristics (SmPC) documents, which typically specify refrigerated storage at 2–8 °C, protection from freezing and light, and defined in-use periods. Those SmPC conditions apply to named authorised medicines only. They are not transferable to an unlicensed research pen and should not be used as a proxy for Veyvora’s own label instructions.
Confirming Conditions Before Use
Researchers should request the following from Veyvora before the pen arrives in the laboratory:
- Written storage temperature range and whether freezing is permissible
- Stated shelf life and any in-use period once the pen is first activated
- Cold-chain packaging specification for transit, including the insulated bag and gel ice pack used
- Instructions for handling if the parcel arrives warm or the insulation or gel pack is compromised
Until Veyvora supplies these details in writing for the specific batch received, do not assume that general recombinant-protein handling norms apply. Veyvora’s storage and stability guidance is the appropriate post-arrival reference once those pages are confirmed as current.
Ordering Information
No verified GBP price, stock level, VAT treatment, dispatch timeframe or distributor margin has been confirmed for the Veyvora Somatropin 100 IU Research Pen at the time of writing; contact Veyvora directly to obtain current figures before committing to any purchase or resale arrangement.
Regulatory Position for Prospective Buyers and Distributors
In Great Britain, somatropin is a prescription-only medicine under the Human Medicines Regulations 2012, and supplying somatropin outside those provisions is unlawful regardless of any research-use-only label [1]. Prospective distributors should note that onward supply of an unlicensed somatropin presentation requires Medicines and Healthcare products Regulatory Agency (MHRA) wholesale dealer authorisation, because informal resale does not become lawful by virtue of a research disclaimer [1]. Researchers and distributors who have confirmed the product format can browse related formats through Growth & Recovery Research Pens.
Research-Use-Only Limitations
A “research use only” label does not override UK medicines law. Somatropin is a prescription-only medicine under the Human Medicines Regulations 2012, and that classification applies by virtue of the substance’s identity and function, not by the seller’s small-print [1]. The MHRA and the Advertising Standards Authority (ASA) assess whether a product is medicinal by its presentation or intended purpose, so a research disclaimer does not alter that assessment [3].
Lawful in-vitro laboratory work with recombinant somatropin requires verified acquisition through an entitled supplier, appropriate containment, and no administration to humans or animals outside an authorised scheme [1]. This page contains no dosing figures, reconstitution-for-injection guidance, growth outcomes or clinic-use language, as none of those fall within the verified scope of a research-use-only pen.
Related Research and Comparison Pages
Researchers who have received a shipment should consult the storage and stability guidance for post-arrival handling requirements specific to recombinant somatropin formats, covering in-use periods and temperature conditions distinct from the batch documentation discussed above.
Prospective buyers who have confirmed the 100 IU pen format and wish to review the broader catalogue can browse Veyvora’s research-peptide catalogue for related presentations. Browsing that catalogue does not imply regulatory equivalence between any listed pen and an MHRA-authorised licensed medicine; somatropin remains a prescription-only medicine under the Human Medicines Regulations 2012 regardless of how a product is categorised on a commercial site [1].
To take the next concrete step, locate your batch number on the packaging and cross-reference it against the public certificate of analysis before beginning any in-vitro protocol.
Sources
[1] legislation.gov.uk, https://www.legislation.gov.uk/uksi/2012/1916 [3] Blue Guide: advertising and promoting medicines - GOV.UK, pmc.ncbi.nlm.nih.gov, 2025, https://pmc.ncbi.nlm.nih.gov/articles/PMC10087031/
