Somatropin is recombinant human growth hormone, a 191 amino acid single chain polypeptide with the identical sequence to the growth hormone secreted by the anterior pituitary. Rather than being extracted from human tissue, it is produced by inserting the human growth hormone gene into a host cell line (typically a strain of E. coli), which then expresses the protein at scale. The “rDNA origin” mark on the label is shorthand for this process.

Because the amino acid sequence matches endogenous hGH exactly, the recombinant protein binds the same growth hormone receptor and triggers the same downstream signalling cascades in the research literature. Two mechanisms dominate the published work: direct receptor activation across peripheral tissues, and hepatic release of Insulin-like Growth Factor 1 (IGF-1), which mediates a large portion of what is broadly labelled the “growth hormone effect”.

Research applications for somatropin span several areas. In the body composition literature it has been examined for its effects on lean mass, adipose tissue and lipolysis via the JAK-STAT and PI3K-Akt pathways. In tissue repair work, IGF-1 driven anabolic signalling has been studied in muscle, connective tissue and skin fibroblast populations. Metabolic studies have looked at glucose handling, free fatty acid mobilisation and hepatic glucose output. There is also a body of work on sleep architecture, with growth hormone secretion showing a well characterised pulse during slow wave sleep in reference subjects.

The 100 IU loading in this pen equates to 33.3mg of somatropin, using the conventional 3 IU per mg conversion. The pen is graduated so that 9 units on the dial dispenses 3 IU (roughly 1mg), giving 33 clean 9 unit draws before the pen runs dry. Sub-unit dosing is possible by dialling smaller increments and reading them off the window.

THE PEN FORMAT

This is where SerenQ does things differently. Instead of ten lyophilised vials and a separate bacteriostatic water ampoule, the somatropin arrives pre-dissolved in a stabilised solution and pre-loaded into a graduated injection pen with a dial and a dose window. Every dial setting delivers a consistent, verifiable volume, and every unit on the dial holds the same 0.333 IU of somatropin.

• 100 IU (33.3mg) of somatropin per pen, pre-dissolved in solution
• 1 unit = 0.333 IU (approximately 111mcg)
• 9 units on the dial gives 3 IU (1mg)
• 300 units in total, which works out at 33 full 9 unit draws per pen
• Dial and dose window let you set the exact amount and read it back before dispensing
• 4 screw on pen tips supplied, individually sealed, 32G 0.23 x 4mm
• 4 alcohol swabs supplied
• Protective cap, clip and a rigid retail carton for storage and transport
• Batch number, expiry and serial printed directly on the pen barrel, not just the box

  HANDLING AND STORAGE

  • Store refrigerated at 2 to 8°C. Do not freeze
  • Keep in the outer carton, away from direct light
  • Solution should be clear and colourless. Discard if cloudy, discoloured or if particulates are visible
  • Short periods at room temperature during transit are expected and normal, though prolonged exposure will degrade potency
  • Use a fresh sealed tip for each dispense and dispose of tips in a sharps container
  • Expiry 12/2027 on sealed, correctly stored stock
  • Keep out of reach of children and animals

  WHAT IS IN THE BOX

  • 1 × SerenQ HGH 100 IU (Somatropin, rDNA origin) pre-filled injection pen
  • 4 × sealed pen tips, 32G 0.23 x 4mm
  • 4 × alcohol swabs
  • Serialised, QR coded retail carton

  FOR RESEARCH PURPOSES ONLY

  This product is sold strictly as a laboratory research chemical. It is not a medicine, not a supplement and not a cosmetic. It is not for human or veterinary consumption, and it is not intended to diagnose, treat, cure or prevent any disease or condition.

  Whilst somatropin is a licensed medicinal ingredient in the UK under several prescription brands, SerenQ HGH is not one of those licensed medicines. It is not authorised by the MHRA, the FDA or any other medicines regulator, and nothing on this page should be read as medical advice, a recommendation, or a suggestion of use in humans or animals.

  By purchasing you confirm you are 18 or over, that you are acquiring this product for legitimate laboratory research or analytical use only, and that you accept full responsibility for its safe handling, storage and lawful use under the regulations that apply where you are.

  Product Overview

  The SerenQ HGH 100iu Peptide Pen (R&D Only) is designed for qualified researchers and laboratories conducting controlled research involving human growth hormone and related biological processes.

  Human growth hormone (HGH), also known as somatropin when referring to recombinant human growth hormone, is an important subject of research in endocrinology, molecular biology, peptide science, and related fields.

  A clearly identified research product can help laboratories maintain organised workflows, accurate records, and consistent product identification throughout an experimental programme.

  The exact formulation, source, purity, excipients, and other product specifications should always be confirmed using the manufacturer’s current documentation and, where available, the relevant Certificate of Analysis (CoA).

  Key Features

  • Product: SerenQ HGH 100iu Peptide Pen
  • Research status: R&D Only
  • Stated quantity: 100iu
  • Format: Peptide pen
  • Category: HGH research product
  • Intended application: Laboratory and scientific research
  • Target users: Qualified researchers and appropriate laboratories
  • Documentation: Batch-specific information should be reviewed where available
  • Market: UK research market, subject to applicable regulations
  • Presentation: Convenient and clearly identified research format
    

    Ingredients & Composition

    The product is identified as an HGH research product with a stated quantity of 100iu.

    The complete formulation should be confirmed using the manufacturer’s current product specification. We do not recommend assuming the presence, concentration, or quantity of additional ingredients without verified documentation.

    Researchers should review available documentation for:

    • Active compound identity
    • Stated quantity
    • Purity information, where provided
    • Excipients and formulation components
    • Batch or lot number
    • Certificate of Analysis
    • Manufacturing information
    • Storage requirements
    • Expiry or retest information

    Where a Certificate of Analysis is supplied, the batch or lot number should be checked against the accompanying documentation.

    HGH Research Information

    Human growth hormone is a peptide hormone involved in a variety of biological processes and is an established subject of endocrinology and biomedical research.

    Research involving HGH can examine areas such as:

    • Hormone-receptor interactions
    • Peptide biology
    • Endocrine signalling
    • Cellular responses
    • Molecular pathways
    • Analytical peptide research
    • Protein and hormone stability
    • Laboratory assay development

    The SerenQ HGH 100iu Peptide Pen (R&D Only) should only be incorporated into an appropriate research programme by suitably qualified personnel.

    Research Benefits

    From a laboratory perspective, the SerenQ HGH 100iu Peptide Pen may provide practical product advantages such as:

    • Clearly identified research material
    • Stated 100iu quantity
    • Convenient pen presentation
    • Easy product identification
    • Practical format for controlled laboratory workflows
    • Research-use-only positioning
    • Product documentation where available

    These are research and product-related characteristics, not claims of medical or therapeutic benefit.

    Recommended Research Use

    The SerenQ HGH 100iu Peptide Pen (R&D Only) is intended exclusively for laboratory and scientific research

    No human dosing or administration instructions are provided. Researchers should establish experimental procedures according to validated laboratory protocols, institutional requirements, appropriate risk assessments, and applicable UK laws and regulations.

    This product should not be used for self-administration or as a substitute for an approved medicinal product.

    Stacking & Combination Research

    HGH-related research may involve the investigation of multiple compounds or biological pathways. However, combining active research compounds can introduce additional experimental variables and potential interactions.

    For this reason, we do not provide human-use stacking protocols or combination dosing recommendations.Where combination research is scientifically justified, qualified researchers should independently evaluate the identity, purity, stability, compatibility, and potential interactions of each research compound before incorporating them into an experimental programme.

    Safety & Precautions

    For research use only. Not for human consumption.

    Researchers should:

    • Handle the product only in an appropriate laboratory environment.
    • Follow established laboratory safety procedures.
    • Use suitable personal protective equipment where required.
    • Avoid contamination during research handling.
    • Keep research materials away from children and unauthorised users.
    • Follow the manufacturer’s current storage instructions.
    • Inspect packaging and labelling before use.
    • Verify the batch or lot number against available documentation.
    • Review the applicable Certificate of Analysis where provided.
    • Dispose of research materials according to appropriate laboratory and local requirements

      Do not self-administer this product or use it to treat a medical condition.

      Why Buy SerenQ HGH 100iu Peptide Pen (R&D Only) From Us?

      When purchasing research products, clear information and a professional purchasing experience are important.

      We aim to provide UK customers with straightforward product information so researchers can understand the product before making a purchasing decision.

      When you purchase SerenQ HGH 100iu Peptide Pen (R&D Only) from us, you can expect:

      • Clearly identified R&D-only products
      • Straightforward product descriptions
      • Professional customer support
      • Secure ordering
        • UK-focused service
        • Transparent research-use positioning
        • Product documentation where available
        • Clear safety and research disclaimers
        • A focus on accurate product information

        We recommend reviewing the product specification and any available batch documentation before laboratory use.

        Storage Information

        Storage requirements depend on the specific formulation and manufacturer’s instructions.

        Always follow the current storage requirements supplied with the specific SerenQ product and batch. Do not assume storage conditions without consulting the applicable product documentation.

        For the most accurate information, refer to the product packaging, manufacturer’s specification, and Certificate of Analysis where available.

        Frequently Asked Questions

        What is SerenQ HGH 100iu Peptide Pen?

        SerenQ HGH 100iu Peptide Pen (R&D Only) is a research-use-only HGH product presented in a pen format with a stated 100iu quantity for qualified laboratory and scientific research.

        What does HGH mean?

        HGH stands for human growth hormone, a peptide hormone that is an established subject of endocrinology and biomedical research.

        Is SerenQ HGH 100iu Peptide Pen intended for human use?

        No. It is presented strictly for research purposes and is not intended for human consumption or self-administration.

        What does 100iu refer to?

        The product is identified with a stated quantity of 100iu. Researchers should verify the exact product specification and batch documentation before laboratory use.

        Can HGH be combined with other research compounds?

        No human-use stacking recommendation is provided for this product. Any combination research should be scientifically justified and evaluated by appropriately qualified researchers

        Who is this product intended for?

        The product is intended for qualified researchers, laboratories, and appropriate scientific research environments capable of safely and lawfully handling research-use-only materials.

        Important Research Disclaimer

        SerenQ HGH 100iu Peptide Pen (R&D Only) is supplied strictly for laboratory research purposes. It is not a medicinal product and is not intended to diagnose, treat, cure, or prevent any disease or medical condition. It is not intended for human consumption or self-administration. Purchasers are responsible for ensuring that the purchase, possession, storage, handling, and research use of this product comply with all applicable laws, regulations, and institutional requirements.