{"product_id":"tb-500","title":"TB-500 5mg \/ 10mg","description":"\u003cp\u003e\u003cstrong\u003eBuy high-purity TB-500 in Australia (5mg \/ 10mg). 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 TB-500\u003c\/h2\u003e\n\u003cp\u003eTB-500 is a synthetic 17-amino-acid peptide corresponding to the active region (residues 17-23) of Thymosin Beta-4 (Tβ4), a naturally occurring protein found in nearly all human and mammalian tissues. Optic Labs supplies TB-500 as a high-purity lyophilised powder in 5mg and 10mg vials, packaged for in vitro and preclinical laboratory research. Each batch is independently HPLC-tested for purity and identity, with certificates of analysis available on request.\u003c\/p\u003e\n\n\u003cp\u003eTB-500 has been extensively studied in the regenerative biology, cell migration and angiogenesis literature. Published research has investigated its effects on actin sequestration, endothelial cell migration, fibroblast activity and tissue-repair processes in animal-model and cell-culture systems. Optic Labs supplies the compound 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 TB-500 (Thymosin Beta-4 fragment 17-23, acetylated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAS number:\u003c\/strong\u003e 77591-33-4 (Tβ4 parent), TB-500 fragment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMolecular formula:\u003c\/strong\u003e C\u003csub\u003e34\u003c\/sub\u003eH\u003csub\u003e56\u003c\/sub\u003eN\u003csub\u003e10\u003c\/sub\u003eO\u003csub\u003e13\u003c\/sub\u003e (peptide fragment)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMolecular weight:\u003c\/strong\u003e ~889.0 g\/mol (TB-500 fragment)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSequence (Tβ4 17-23 region):\u003c\/strong\u003e Ac-LKKTETQ-OH\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 sizes:\u003c\/strong\u003e 5mg vial \/ 10mg vial\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 30 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\u003eThymosin Beta-4 was first identified in the 1980s as a major actin-sequestering protein in eukaryotic cells. The TB-500 fragment used in research preserves the central actin-binding motif of the parent peptide. Published preclinical studies have examined TB-500 in the context of:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eActin sequestration and cytoskeletal remodelling in cell-culture models\u003c\/li\u003e\n\u003cli\u003eEndothelial cell migration and capillary tube formation\u003c\/li\u003e\n\u003cli\u003eCardiac, skin and corneal wound-healing animal models\u003c\/li\u003e\n\u003cli\u003eFibroblast and myocyte proliferation studies\u003c\/li\u003e\n\u003cli\u003eAnti-inflammatory and matrix-metalloproteinase pathway research\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor a more detailed research summary with study citations, see our \u003ca href=\"\/blogs\/news\/tb-500-australia-thymosin-injury-research-guide\"\u003eTB-500 thymosin research guide\u003c\/a\u003e and our \u003ca href=\"\/blogs\/news\/bpc-157-tb-500-stack-research-guide\"\u003eBPC-157 + TB-500 stack research guide\u003c\/a\u003e. Researchers working with reconstitution should also reference our \u003ca href=\"\/blogs\/news\/peptide-reconstitution-calculator-guide-australia\"\u003epeptide reconstitution guide\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eReconstitution and handling\u003c\/h2\u003e\n\u003cp\u003eTB-500 is supplied as a lyophilised powder and must be reconstituted with bacteriostatic water before use in any laboratory protocol. A typical reconstitution for a 5mg vial is 2mL of \u003ca href=\"\/products\/bac-water-3ml-10ml\"\u003ebacteriostatic water\u003c\/a\u003e, yielding a working concentration of 2.5mg\/mL; for a 10mg vial, 2mL yields 5mg\/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 and protected from light.\u003c\/p\u003e\n\n\u003ch2\u003eCommonly stacked research peptides\u003c\/h2\u003e\n\u003cp\u003eTB-500 is frequently studied alongside other regenerative peptides in published animal-model literature. Researchers working on combined regenerative protocols may be interested in:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/bpc-157\"\u003eBPC-157\u003c\/a\u003e — most frequently co-investigated peptide for tissue-repair research\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/bpc-157-tb-500-10mg-20mg\"\u003eBPC-157 + TB-500 blend\u003c\/a\u003e — pre-mixed convenience option\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/ghk-cu-50mg-100mg\"\u003eGHK-Cu\u003c\/a\u003e — collagen and skin regeneration research\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/glow70-bpc-157-10mg-ghk-cu-50mg-tb-500-10mg\"\u003eGLOW Stack\u003c\/a\u003e — BPC-157 + GHK-Cu + TB-500 combined\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/klow80-bpc-157-10mg-ghk-cu-50mg-tb-500-10mg-kpv-10mg\"\u003eKLOW Stack\u003c\/a\u003e — adds KPV for inflammatory pathway research\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\n\u003ch3\u003eIs TB-500 legal in Australia?\u003c\/h3\u003e\n\u003cp\u003eTB-500 is not currently approved by the Therapeutic Goods Administration (TGA) for any therapeutic use in Australia. Optic Labs supplies TB-500 strictly as a research chemical for in vitro and preclinical laboratory research — not for human consumption, clinical use or any therapeutic application. For a detailed overview of how Australian peptide regulation works, 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 TB-500?\u003c\/h3\u003e\n\u003cp\u003eTB-500 is a synthetic 7-amino-acid peptide fragment corresponding to the central actin-binding region (residues 17-23) of Thymosin Beta-4, a naturally occurring intracellular protein. In published research it has been investigated for its effects on cell migration, angiogenesis and tissue-repair signalling in animal and cell-culture models. See our \u003ca href=\"\/blogs\/news\/tb-500-australia-thymosin-injury-research-guide\"\u003eTB-500 research guide\u003c\/a\u003e for background.\u003c\/p\u003e\n\n\u003ch3\u003eWhat is the difference between TB-500 and Thymosin Beta-4?\u003c\/h3\u003e\n\u003cp\u003eThymosin Beta-4 (Tβ4) is the full 43-amino-acid parent protein. TB-500 refers to a shorter synthetic fragment (residues 17-23) that retains the actin-binding motif. The shorter sequence is the form most commonly used in commercially supplied research peptide work. Our \u003ca href=\"\/blogs\/news\/tb-500-australia-thymosin-injury-research-guide\"\u003eresearch guide\u003c\/a\u003e covers the differences in detail.\u003c\/p\u003e\n\n\u003ch3\u003eHow is TB-500 supplied?\u003c\/h3\u003e\n\u003cp\u003eOptic Labs supplies TB-500 as a lyophilised (freeze-dried) white powder in glass research vials, available in 5mg and 10mg sizes. Each vial is sealed and 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 5mg or 10mg TB-500 vial?\u003c\/h3\u003e\n\u003cp\u003eReconstitution volume depends on the working concentration required by the research protocol. As a common starting point, 2mL of \u003ca href=\"\/products\/bac-water-3ml-10ml\"\u003ebacteriostatic water\u003c\/a\u003e reconstitutes a 5mg vial at 2.5mg\/mL, or a 10mg vial at 5mg\/mL. Our \u003ca href=\"\/blogs\/news\/peptide-reconstitution-calculator-guide-australia\"\u003ereconstitution guide\u003c\/a\u003e covers the calculations in detail.\u003c\/p\u003e\n\n\u003ch3\u003eHow should reconstituted TB-500 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 30 days. For full storage protocols across all peptide forms, 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. Optic 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":"5mg","offer_id":53360885170360,"sku":null,"price":61.99,"currency_code":"AUD","in_stock":true},{"title":"10mg","offer_id":53360885203128,"sku":null,"price":94.99,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/4196\/1656\/files\/tb5.png?v=1776426119","url":"https:\/\/opticlabsau.com\/products\/tb-500","provider":"Optic Labs","version":"1.0","type":"link"}