{"product_id":"hgh-15iu","title":"HGH 15iu","description":"\u003cp\u003e\u003cstrong\u003eBuy high-purity HGH (somatropin) 15iu in Australia. Third-party lab tested at \u0026gt;99% purity. Australian-domestic shipping, AUD pricing, supplied for laboratory research use only.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch2\u003eAbout HGH (somatropin)\u003c\/h2\u003e\n\u003cp\u003eHuman growth hormone (HGH), also referred to as somatropin, is a 191-amino-acid recombinant protein with the identical primary sequence to endogenous human growth hormone (hGH). It is produced via recombinant DNA technology in microbial expression systems and purified to research grade. Optic Labs supplies HGH as a high-purity lyophilised powder in 15iu vials, packaged for in vitro and preclinical laboratory research.\u003c\/p\u003e\n\n\u003cp\u003eEach batch is independently HPLC-tested for purity and identity, with certificates of analysis available on request.\u003c\/p\u003e\n\n\u003cp\u003eGrowth hormone has been one of the most extensively studied proteins in endocrine research for several decades, with a published literature spanning receptor pharmacology, IGF-1 axis signalling, body composition and metabolic effects in animal models and human study populations. Optic Labs supplies HGH for laboratory research only — not for human consumption, clinical use, or any therapeutic application.\u003c\/p\u003e\n\n\u003ch2\u003eProduct specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompound:\u003c\/strong\u003e Recombinant human growth hormone (somatropin, rhGH)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAS number:\u003c\/strong\u003e 12629-01-5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSequence:\u003c\/strong\u003e 191 amino acids, identical to endogenous hGH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMolecular weight:\u003c\/strong\u003e ~22,124 Da (~22 kDa)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduction:\u003c\/strong\u003e Recombinant DNA technology, microbial expression\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm:\u003c\/strong\u003e Lyophilised (freeze-dried) white powder\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e \u0026gt;99% by HPLC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable size:\u003c\/strong\u003e 15iu vial (approximately 5mg by mass; 1mg ≈ 3iu)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Store unreconstituted vials at 2–8°C; protect from light. Reconstituted solution stored at 2–8°C and used within ~14 days.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Manufactured to research-grade specifications, third-party HPLC verified\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping:\u003c\/strong\u003e Australia-wide domestic dispatch from Sydney, NSW\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eResearch background\u003c\/h2\u003e\n\u003cp\u003eRecombinant human growth hormone is one of the most well-characterised proteins in modern endocrinology. Published preclinical and clinical research has examined HGH in the context of:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGrowth hormone receptor (GHR) binding, JAK2\/STAT5 signalling and downstream gene expression\u003c\/li\u003e\n\u003cli\u003eHepatic IGF-1 synthesis and the GH\/IGF-1 axis\u003c\/li\u003e\n\u003cli\u003eBody composition (lean mass, adipose mass) in animal models and clinical study populations\u003c\/li\u003e\n\u003cli\u003eLipid metabolism, lipolysis and glucose homeostasis\u003c\/li\u003e\n\u003cli\u003eBone density and connective-tissue research\u003c\/li\u003e\n\u003cli\u003eSleep architecture and recovery-research models\u003c\/li\u003e\n\u003cli\u003ePharmacokinetic and pharmacodynamic studies across multiple recombinant somatropin preparations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eReconstitution and handling\u003c\/h2\u003e\n\u003cp\u003eHGH is supplied as a lyophilised powder and must be reconstituted with bacteriostatic water before use in any laboratory protocol. The recombinant protein is sensitive to mechanical shear — add the diluent slowly down the side of the vial rather than directly onto the powder, and swirl gently to dissolve. Do not shake.\u003c\/p\u003e\n\n\u003cp\u003eA 15iu vial reconstituted in 1.5mL of \u003ca href=\"\/products\/bac-water-3ml-10ml\"\u003ebacteriostatic water\u003c\/a\u003e yields a working concentration of 10iu\/mL; 3mL yields 5iu\/mL. Exact volumes should be calculated for each protocol — our \u003ca href=\"\/blogs\/news\/peptide-reconstitution-calculator-guide-australia\"\u003ereconstitution calculator guide\u003c\/a\u003e walks through the maths. Reconstituted vials should be stored refrigerated at 2–8°C, protected from light, and used within approximately 14 days; recombinant proteins degrade faster in solution than smaller synthetic peptides.\u003c\/p\u003e\n\n\u003ch2\u003eComparisons and related research compounds\u003c\/h2\u003e\n\u003cp\u003eRecombinant HGH is the upstream protein in the GH\/IGF-1 research axis. Researchers may also be interested in compounds that act upstream of, or alongside, endogenous growth-hormone release:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/cjc-1295-no-dac-ipamorelin-10mg\"\u003eCJC-1295 + Ipamorelin\u003c\/a\u003e — GHRH analogue + GHRP combination, growth-hormone-releasing research peptide pairing\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/tesamorelin-10mg\"\u003eTesamorelin\u003c\/a\u003e — stabilised GHRH analogue, lipolysis research\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/aod-9604-5mg\"\u003eAOD-9604\u003c\/a\u003e — fragment hGH analogue (residues 176–191), fat-loss research\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/mots-c-10mg-40mg\"\u003eMOTS-C\u003c\/a\u003e — mitochondrial-derived peptide, metabolic research\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\n\u003ch3\u003eIs HGH legal in Australia?\u003c\/h3\u003e\n\u003cp\u003eRecombinant human growth hormone (somatropin) is registered with the Therapeutic Goods Administration (TGA) as a Schedule 4 prescription-only therapeutic medicine in Australia under multiple brand registrations. Optic Labs does not supply HGH as a therapeutic, prescription or compounded product, and HGH from Optic Labs is not intended for personal, clinical or therapeutic use. Optic Labs supplies HGH strictly as a research-grade material for in vitro and preclinical laboratory research only. For a detailed overview of peptide legality in Australia, see our \u003ca href=\"\/blogs\/news\/are-peptides-legal-australia-tga-compliance-2025\"\u003eguide to peptide legality and TGA compliance in Australia\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eWhat is HGH?\u003c\/h3\u003e\n\u003cp\u003eHGH (human growth hormone, also called somatropin or rhGH when produced recombinantly) is a 191-amino-acid protein hormone with the same primary sequence as endogenous human growth hormone. In published research it has been investigated extensively for its effects on body composition, IGF-1 axis signalling, lipid metabolism, bone metabolism and recovery-related processes.\u003c\/p\u003e\n\n\u003ch3\u003eHow does HGH differ from research peptides like CJC-1295, ipamorelin or tesamorelin?\u003c\/h3\u003e\n\u003cp\u003eHGH is growth hormone itself — a full 191-amino-acid recombinant protein. \u003ca href=\"\/products\/cjc-1295-no-dac-ipamorelin-10mg\"\u003eCJC-1295\u003c\/a\u003e and tesamorelin are GHRH analogues, and ipamorelin is a GHRP — they act upstream of the pituitary to stimulate endogenous growth-hormone release. The research literature treats them as different tools that probe different parts of the same axis: HGH provides exogenous protein directly; GHRH\/GHRP compounds modulate endogenous release.\u003c\/p\u003e\n\n\u003ch3\u003eHow is HGH supplied?\u003c\/h3\u003e\n\u003cp\u003eOptic Labs supplies HGH as a lyophilised powder in a sealed glass research vial at the 15iu size (approximately 5mg by mass). Each vial is shipped with a tamper-evident seal. Certificates of analysis showing HPLC purity testing are available on request.\u003c\/p\u003e\n\n\u003ch3\u003eHow much bacteriostatic water do I mix with a HGH 15iu vial?\u003c\/h3\u003e\n\u003cp\u003eReconstitution volume depends on the working concentration required by the research protocol. As a starting reference: 15iu in 1.5mL of \u003ca href=\"\/products\/bac-water-3ml-10ml\"\u003ebacteriostatic water\u003c\/a\u003e yields 10iu\/mL; 15iu in 3mL yields 5iu\/mL. Add the diluent slowly down the side of the vial and swirl gently to dissolve — do not shake, as recombinant proteins are sensitive to mechanical shear. Our \u003ca href=\"\/blogs\/news\/peptide-reconstitution-calculator-guide-australia\"\u003ereconstitution guide\u003c\/a\u003e covers the calculations.\u003c\/p\u003e\n\n\u003ch3\u003eHow should reconstituted HGH be stored?\u003c\/h3\u003e\n\u003cp\u003eUnreconstituted vials should be stored at 2–8°C and protected from light. Once reconstituted, the solution should be refrigerated at 2–8°C and used within approximately 14 days. Recombinant proteins are more stability-sensitive than smaller synthetic peptides — do not freeze and thaw, and minimise warming-cooling cycles. For full storage protocols, see our \u003ca href=\"\/blogs\/news\/peptide-storage-complete-research-guide\"\u003epeptide storage guide\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eWhere does Optic Labs ship to?\u003c\/h3\u003e\n\u003cp\u003eOptic Labs ships Australia-wide from Sydney, NSW. Standard dispatch is next business day on orders received before the daily cut-off. International shipping is not currently offered.\u003c\/p\u003e\n\n\u003ch2\u003eLegal disclaimer\u003c\/h2\u003e\n\u003cp\u003eAll products on this site are supplied for \u003cstrong\u003elaboratory research, development or analytical use only\u003c\/strong\u003e. They are not for human consumption, clinical use, or any diagnostic, cosmetic or veterinary application. These products and statements have not been evaluated by the \u003cstrong\u003eTherapeutic Goods Administration (TGA)\u003c\/strong\u003e or the \u003cstrong\u003eAPVMA\u003c\/strong\u003e and are not intended to diagnose, treat, cure or prevent any disease.\u003c\/p\u003e\n\n\u003cp\u003eOptic Labs is not a \u003cstrong\u003ecompounding pharmacy\u003c\/strong\u003e or manufacturing facility as defined under the \u003cem\u003eTherapeutic Goods Act 1989\u003c\/em\u003e, and is not a registered provider of scheduled medicines or therapeutic goods.\u003c\/p\u003e","brand":"Optic Labs","offers":[{"title":"Default Title","offer_id":53494987129016,"sku":null,"price":99.99,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/4196\/1656\/files\/hf_20260417_085411_ccca53cc-dda8-4911-8f1e-d14158fbf737.png?v=1779440731","url":"https:\/\/opticlabsau.com\/products\/hgh-15iu","provider":"Optic Labs","version":"1.0","type":"link"}