{"title":"PT-141 \u0026 Melanocortin Research Peptides","description":"\u003ch2\u003ePT-141 and melanocortin receptor research peptides\u003c\/h2\u003e\n\u003cp\u003eThe melanocortin system is a family of five receptors (MC1R to MC5R) that respond to alpha-MSH and related peptides. This collection groups the synthetic melanocortin agonists we stock for receptor-binding and signalling research.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/products\/pt-141\"\u003ePT-141 (bremelanotide)\u003c\/a\u003e is a cyclic heptapeptide and a metabolite of Melanotan II, studied mainly at the MC3 and MC4 receptors in central melanocortin-signalling research. Our PT-141 owner page is the \u003ca href=\"\/products\/pt-141\"\u003e10mg lyophilised vial\u003c\/a\u003e. The same compound is also available as a \u003ca href=\"\/products\/pt-141-nasal-spray\"\u003ePT-141 nasal spray\u003c\/a\u003e solution for intranasal models and as a ready-made \u003ca href=\"\/products\/pt-141-pre-filled-pen\"\u003ePT-141 pen\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/products\/mt-1\"\u003eMT-1 (Melanotan I, afamelanotide)\u003c\/a\u003e is a linear alpha-MSH analogue with a preference for MC1R, used in melanogenesis research. \u003ca href=\"\/products\/mt-2\"\u003eMT-2 (Melanotan II)\u003c\/a\u003e is a cyclic, non-selective melanocortin agonist and is available as a vial and a nasal spray solution.\u003c\/p\u003e\n\u003cp\u003eAll of these are research compounds. We make no tanning, sexual-health or other effect claims, and they are not for human use. Every batch is independently tested by HPLC and mass spectrometry, with certificates on our \u003ca href=\"\/pages\/coas\"\u003eCOA page\u003c\/a\u003e. Delivery is free on South African orders over R2,500.\u003c\/p\u003e\n\u003ch2\u003ePT-141 \u0026amp; Melanocortin Research Peptides: frequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is the difference between PT-141 and MT-2?\u003c\/h3\u003e\n\u003cp\u003ePT-141 (bremelanotide) is a metabolite of MT-2 that lacks the C-terminal amide. It is studied mainly at MC3R and MC4R, while MT-2 is a non-selective agonist across the melanocortin receptors.\u003c\/p\u003e\n\u003ch3\u003eWhich PT-141 format should I choose?\u003c\/h3\u003e\n\u003cp\u003eThe 10mg lyophilised vial keeps longest. The nasal spray solution suits intranasal research models, and the pen is supplied ready-made and kept at 2–8 °C.\u003c\/p\u003e\n\u003ch3\u003eIs MT-1 the same as afamelanotide?\u003c\/h3\u003e\n\u003cp\u003eYes. MT-1, Melanotan I and afamelanotide are names for the same linear alpha-MSH analogue.\u003c\/p\u003e\n\u003ch3\u003eAre these products for human use?\u003c\/h3\u003e\n\u003cp\u003eNo. They are sold strictly for laboratory research and are not for human or veterinary use.\u003c\/p\u003e\n\u003ch2\u003eResearch use only\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eFor laboratory research use only. Not for human or veterinary use and not for consumption. Research peptides listed here are not medicines and are not intended to diagnose, treat, cure or prevent any disease. Purchasers must be 18+.\u003c\/em\u003e\u003c\/p\u003e","products":[{"product_id":"pt-141-nasal-spray","title":"PT-141 Nasal Spray","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003ePT-141 (bremelanotide) is a synthetic cyclic heptapeptide melanocortin-receptor agonist derived from Melanotan II. It is used in laboratory melanocortin research.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompound:\u003c\/strong\u003e PT-141 (Bremelanotide)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFormat:\u003c\/strong\u003e Ready-made solution, spray-pump bottle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMolecular formula:\u003c\/strong\u003e C50H68N14O10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMolecular weight:\u003c\/strong\u003e 1025.2 g\/mol\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAS number:\u003c\/strong\u003e 189691-06-3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSequence:\u003c\/strong\u003e Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-OH\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eStorage and handling\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSupplied as a ready-made aqueous solution in a spray-pump bottle.\u003c\/li\u003e\n\u003cli\u003eStore refrigerated at 2–8 °C after opening, protected from light.\u003c\/li\u003e\n\u003cli\u003eKeep the cap closed when not in use.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePT-141 Nasal Spray in South Africa from Biolabs Research\u003c\/h2\u003e\n\u003cp\u003eBiolabs Research is a premium South African research peptide brand, and our PT-141 nasal spray offers the simplest way to work with bremelanotide in the lab: a ready-made aqueous solution in a metered spray-pump bottle, with no weighing, reconstitution or pen hardware required. PT-141 is a cyclic melanocortin-receptor agonist studied mainly at the MC3 and MC4 receptors in models of central melanocortin signalling.\u003c\/p\u003e\u003ch3\u003eChoose the right PT-141 format\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/pt-141\"\u003ePT-141 10mg lyophilised vial\u003c\/a\u003e: longest shelf life and full control over reconstitution.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/pt-141-pre-filled-pen\"\u003ePT-141 10mg Peptide Pen\u003c\/a\u003e: ready-made solution, dispatched by overnight cold-chain courier.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/pt-141-nasal-spray\"\u003ePT-141 Nasal Spray\u003c\/a\u003e: ready-made aqueous solution in a spray-pump bottle.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBatch-tested quality\u003c\/h3\u003e\u003cp\u003eEach spray batch is independently tested for identity and purity by HPLC and mass spectrometry, and the matching certificate is published on our \u003ca href=\"\/pages\/coas\"\u003eCOA page\u003c\/a\u003e. Prefer another format, or want the full range? Browse all \u003ca href=\"\/collections\/peptides-south-africa\"\u003epeptides in South Africa\u003c\/a\u003e, or read our \u003ca href=\"\/blogs\/peptide-blog\/peptide-nasal-sprays-south-africa\"\u003epeptide nasal sprays guide\u003c\/a\u003e.\u003c\/p\u003e\u003ch2\u003ePT-141 Nasal Spray FAQ\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhere can I buy PT-141 nasal spray in South Africa?\u003c\/strong\u003e\u003cbr\u003eOrder directly from Biolabs Research. We ship nationwide from local stock with tracked courier delivery.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the nasal spray need to be reconstituted?\u003c\/strong\u003e\u003cbr\u003eNo. It is supplied as a ready-made aqueous solution in a spray-pump bottle. Keep it refrigerated at 2–8 °C after opening and protected from light.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the nasal spray different from the PT-141 vial or pen?\u003c\/strong\u003e\u003cbr\u003eAll three contain PT-141 (bremelanotide). The vial is a lyophilised powder with the longest shelf life, the pen is a ready-made solution in a pen, and the spray is a ready-made solution in a spray-pump bottle.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I check purity?\u003c\/strong\u003e\u003cbr\u003eMatch the batch number on the bottle to its certificate on our \u003ca href=\"\/pages\/coas\"\u003eCOA page\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs PT-141 nasal spray for human use?\u003c\/strong\u003e\u003cbr\u003eNo. It is sold strictly for laboratory research and is not for human or veterinary use.\u003c\/p\u003e\u003ch3\u003eResearch-use notice\u003c\/h3\u003e\u003cp\u003eFor laboratory research use only. Not for human or veterinary use, not for consumption, and not a medicine, food or cosmetic. Supplied to qualified researchers; the purchaser is responsible for safe handling and for complying with applicable South African regulations. Statements on this page are product identification and handling information only.\u003c\/p\u003e","brand":"Biolabs Peptides","offers":[{"title":"Default Title","offer_id":49790781554930,"sku":null,"price":919.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/5410\/1746\/files\/e97d91_8c34912f8da84951b445f13f0e47c3a2_mv2.png?v=1788937550"},{"product_id":"pt-141","title":"PT-141","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003ePT-141 (bremelanotide) is a synthetic cyclic heptapeptide melanocortin-receptor agonist derived from Melanotan II. It is used in laboratory melanocortin research.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompound:\u003c\/strong\u003e PT-141 (Bremelanotide)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFormat:\u003c\/strong\u003e Lyophilised powder, sealed glass vial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrength:\u003c\/strong\u003e 10 mg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMolecular formula:\u003c\/strong\u003e C50H68N14O10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMolecular weight:\u003c\/strong\u003e 1025.2 g\/mol\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAS number:\u003c\/strong\u003e 189691-06-3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSequence:\u003c\/strong\u003e Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-OH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e See the batch COA on our COA page\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eStorage and handling\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSupplied as a lyophilised (freeze-dried) powder in a sealed glass vial.\u003c\/li\u003e\n\u003cli\u003eStore unopened at −20 °C for long-term storage or 2–8 °C for short-term storage, protected from light and moisture.\u003c\/li\u003e\n\u003cli\u003eLyophilised vials are stable at ambient temperature during normal courier transit.\u003c\/li\u003e\n\u003cli\u003eAllow the vial to reach room temperature before opening to limit moisture uptake.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePT-141 South Africa: 10mg Lyophilised Vial from Biolabs Research\u003c\/h2\u003e\n\u003cp\u003eBiolabs Research is a premium South African research peptide brand, and the 10 mg lyophilised vial is our most flexible PT-141 format. Supplied as a freeze-dried powder, it offers the longest shelf life of any PT-141 product we sell and lets your laboratory choose its own reconstitution solution and concentration. Bremelanotide is a cyclic heptapeptide melanocortin agonist widely used as a reference compound in central melanocortin research.\u003c\/p\u003e\u003ch3\u003eChoose the right PT-141 format\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/pt-141\"\u003ePT-141 10mg lyophilised vial\u003c\/a\u003e: longest shelf life and full control over reconstitution.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/pt-141-pre-filled-pen\"\u003ePT-141 10mg Peptide Pen\u003c\/a\u003e: ready-made solution, dispatched by overnight cold-chain courier.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/pt-141-nasal-spray\"\u003ePT-141 Nasal Spray\u003c\/a\u003e: ready-made aqueous solution in a spray-pump bottle.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePurity you can check\u003c\/h3\u003e\u003cp\u003eOur PT-141 vials are tested batch by batch by an independent laboratory using HPLC and mass spectrometry, with certificates on our \u003ca href=\"\/pages\/coas\"\u003eCOA page\u003c\/a\u003e. Learn how to interpret them in \u003ca href=\"\/blogs\/peptide-blog\/peptide-coa-hplc-purity-south-africa\"\u003ehow to read a peptide COA\u003c\/a\u003e, read \u003ca href=\"\/blogs\/peptide-blog\/reignite-the-spark-with-pt-141-from-biolabs\"\u003eour PT-141 article\u003c\/a\u003e, or browse all \u003ca href=\"\/collections\/peptides-south-africa\"\u003epeptides in South Africa\u003c\/a\u003e.\u003c\/p\u003e\u003ch2\u003ePT-141 Vial FAQ\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhere can I buy PT-141 in South Africa?\u003c\/strong\u003e\u003cbr\u003eOrder directly from Biolabs Research. Lyophilised vials ship nationwide from local stock with tracked courier delivery.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat do I reconstitute PT-141 with?\u003c\/strong\u003e\u003cbr\u003eLaboratories typically use \u003ca href=\"\/products\/10ml-peptide-water-sterile-water\"\u003esterile water\u003c\/a\u003e or \u003ca href=\"\/products\/genetek-reconstitution-solution-0-9-benzyl-alcohol-10ml\"\u003ebacteriostatic (0.9% benzyl alcohol) solution\u003c\/a\u003e, added slowly down the vial wall and swirled gently. See our \u003ca href=\"\/blogs\/peptide-blog\/bacteriostatic-water-south-africa\"\u003ebacteriostatic water guide\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the vial need cold-chain delivery?\u003c\/strong\u003e\u003cbr\u003eNo. Lyophilised vials are stable at ambient temperature during normal courier transit. Store at −20 °C long-term or 2–8 °C short-term on arrival.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I check purity?\u003c\/strong\u003e\u003cbr\u003eMatch the batch number on the vial to its certificate on our \u003ca href=\"\/pages\/coas\"\u003eCOA page\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs PT-141 for human use?\u003c\/strong\u003e\u003cbr\u003eNo. It is sold strictly for laboratory research and is not for human or veterinary use.\u003c\/p\u003e\u003ch3\u003eResearch-use notice\u003c\/h3\u003e\u003cp\u003eFor laboratory research use only. Not for human or veterinary use, not for consumption, and not a medicine, food or cosmetic. Supplied to qualified researchers; the purchaser is responsible for safe handling and for complying with applicable South African regulations. Statements on this page are product identification and handling information only.\u003c\/p\u003e","brand":"Biolabs Peptides","offers":[{"title":"10","offer_id":49790784504050,"sku":null,"price":583.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/5410\/1746\/files\/e97d91_d050253de36b4a3f8e90f98c02658c21_mv2.png?v=1789974165"},{"product_id":"mt-2-10mg-nasal-spray","title":"MT-2 10mg Nasal Spray","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eMelanotan II is a synthetic cyclic heptapeptide analogue of α-MSH. It is used in laboratory melanocortin-receptor research.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompound:\u003c\/strong\u003e MT-2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFormat:\u003c\/strong\u003e Ready-made solution, spray-pump bottle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContent:\u003c\/strong\u003e 10 mg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMolecular formula:\u003c\/strong\u003e C50H69N15O9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMolecular weight:\u003c\/strong\u003e 1024.2 g\/mol\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAS number:\u003c\/strong\u003e 121062-08-6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSequence:\u003c\/strong\u003e Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-NH2\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eStorage and handling\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSupplied as a ready-made aqueous solution in a spray-pump bottle.\u003c\/li\u003e\n\u003cli\u003eStore refrigerated at 2–8 °C after opening, protected from light.\u003c\/li\u003e\n\u003cli\u003eKeep the cap closed when not in use.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eResearch-use notice\u003c\/h3\u003e\u003cp\u003eFor laboratory research use only. Not for human or veterinary use, not for consumption, and not a medicine, food or cosmetic. Supplied to qualified researchers; the purchaser is responsible for safe handling and for complying with applicable South African regulations. Statements on this page are product identification and handling information only.\u003c\/p\u003e","brand":"Biolabs Peptides","offers":[{"title":"Default Title","offer_id":49790784831730,"sku":null,"price":814.0,"currency_code":"ZAR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/5410\/1746\/files\/e97d91_e2856bed68fc4ca590760d0f0419598a_mv2.png?v=1789974168"},{"product_id":"mt-2","title":"MT-2","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eMelanotan II is a synthetic cyclic heptapeptide analogue of α-MSH. It is used in laboratory melanocortin-receptor research.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompound:\u003c\/strong\u003e MT-2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFormat:\u003c\/strong\u003e Lyophilised powder, sealed glass vial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrength:\u003c\/strong\u003e 10 mg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMolecular formula:\u003c\/strong\u003e C50H69N15O9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMolecular weight:\u003c\/strong\u003e 1024.2 g\/mol\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAS number:\u003c\/strong\u003e 121062-08-6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSequence:\u003c\/strong\u003e Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-NH2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e See the batch COA on our COA page\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eStorage and handling\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSupplied as a lyophilised (freeze-dried) powder in a sealed glass vial.\u003c\/li\u003e\n\u003cli\u003eStore unopened at −20 °C for long-term storage or 2–8 °C for short-term storage, protected from light and moisture.\u003c\/li\u003e\n\u003cli\u003eLyophilised vials are stable at ambient temperature during normal courier transit.\u003c\/li\u003e\n\u003cli\u003eAllow the vial to reach room temperature before opening to limit moisture uptake.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eResearch-use notice\u003c\/h3\u003e\u003cp\u003eFor laboratory research use only. Not for human or veterinary use, not for consumption, and not a medicine, food or cosmetic. Supplied to qualified researchers; the purchaser is responsible for safe handling and for complying with applicable South African regulations. Statements on this page are product identification and handling information only.\u003c\/p\u003e","brand":"Biolabs Peptides","offers":[{"title":"10","offer_id":49790784864498,"sku":null,"price":466.0,"currency_code":"ZAR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/5410\/1746\/files\/e97d91_a55bf8bda1604a55bfa2fcf30e04cd78_mv2.png?v=1789974168"},{"product_id":"mt-1","title":"MT-1","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eMelanotan I (afamelanotide) is a synthetic linear analogue of α-MSH. It is used in laboratory melanocortin-receptor research.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompound:\u003c\/strong\u003e MT-1 (Afamelanotide)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFormat:\u003c\/strong\u003e Lyophilised powder, sealed glass vial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrength:\u003c\/strong\u003e 10 mg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMolecular formula:\u003c\/strong\u003e C78H111N21O19\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMolecular weight:\u003c\/strong\u003e 1646.9 g\/mol\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAS number:\u003c\/strong\u003e 75921-69-6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSequence:\u003c\/strong\u003e Ac-Ser-Tyr-Ser-Nle-Glu-His-D-Phe-Arg-Trp-Gly-Lys-Pro-Val-NH2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e See the batch COA on our COA page\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eStorage and handling\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSupplied as a lyophilised (freeze-dried) powder in a sealed glass vial.\u003c\/li\u003e\n\u003cli\u003eStore unopened at −20 °C for long-term storage or 2–8 °C for short-term storage, protected from light and moisture.\u003c\/li\u003e\n\u003cli\u003eLyophilised vials are stable at ambient temperature during normal courier transit.\u003c\/li\u003e\n\u003cli\u003eAllow the vial to reach room temperature before opening to limit moisture uptake.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eResearch-use notice\u003c\/h3\u003e\u003cp\u003eFor laboratory research use only. Not for human or veterinary use, not for consumption, and not a medicine, food or cosmetic. Supplied to qualified researchers; the purchaser is responsible for safe handling and for complying with applicable South African regulations. Statements on this page are product identification and handling information only.\u003c\/p\u003e","brand":"Biolabs Peptides","offers":[{"title":"10","offer_id":49790785618162,"sku":null,"price":694.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/5410\/1746\/files\/e97d91_aa2d3013b7fb44cb8c3d5685481f7c0e_mv2.png?v=1789974185"},{"product_id":"pt-141-pre-filled-pen","title":"PT-141 Peptide Pen","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003ePT-141 (bremelanotide) is a synthetic cyclic heptapeptide melanocortin-receptor agonist derived from Melanotan II. It is used in laboratory melanocortin research.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompound:\u003c\/strong\u003e PT-141 (Bremelanotide)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFormat:\u003c\/strong\u003e Pre-filled pen, ready-made solution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrength:\u003c\/strong\u003e 10 mg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMolecular formula:\u003c\/strong\u003e C50H68N14O10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMolecular weight:\u003c\/strong\u003e 1025.2 g\/mol\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAS number:\u003c\/strong\u003e 189691-06-3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSequence:\u003c\/strong\u003e Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-OH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e See the batch COA on our COA page\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eStorage and handling\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSupplied as a ready-made solution in a pre-filled pen, made to order.\u003c\/li\u003e\n\u003cli\u003eKeep refrigerated at 2–8 °C and protected from light. Do not freeze.\u003c\/li\u003e\n\u003cli\u003eDispatched by overnight cold-chain courier; where reliable overnight delivery is not available, the lyophilised vial version is recommended.\u003c\/li\u003e\n\u003cli\u003eRefer to the pen label for batch details.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePT-141 Peptide Pen in South Africa from Biolabs Research\u003c\/h2\u003e\n\u003cp\u003eBiolabs Research is a premium South African research peptide brand. Our PT-141 Peptide Pen holds 10 mg of bremelanotide as a ready-made solution, made to order and kept cold from our fridge to your door by overnight courier. Developed from Melanotan II but with its research focus on central MC3\/MC4 receptor pathways rather than pigmentation, PT-141 remains one of the most requested melanocortin reference peptides in our range.\u003c\/p\u003e\u003ch3\u003eChoose the right PT-141 format\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/pt-141\"\u003ePT-141 10mg lyophilised vial\u003c\/a\u003e: longest shelf life and full control over reconstitution.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/pt-141-pre-filled-pen\"\u003ePT-141 10mg Peptide Pen\u003c\/a\u003e: ready-made solution, dispatched by overnight cold-chain courier.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/pt-141-nasal-spray\"\u003ePT-141 Nasal Spray\u003c\/a\u003e: ready-made aqueous solution in a spray-pump bottle.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eVerified before it ships\u003c\/h3\u003e\u003cp\u003eEvery pen batch carries a batch number that matches an independent HPLC\/MS certificate on our \u003ca href=\"\/pages\/coas\"\u003eCOA page\u003c\/a\u003e. Explore our wider range of \u003ca href=\"\/collections\/peptides-south-africa\"\u003epeptides in South Africa\u003c\/a\u003e, or compare formats in \u003ca href=\"\/blogs\/peptide-blog\/peptide-pens-vs-vials-south-africa\"\u003epeptide pens vs vials\u003c\/a\u003e.\u003c\/p\u003e\u003ch2\u003ePT-141 Peptide Pen FAQ\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhere can I buy a PT-141 pen in South Africa?\u003c\/strong\u003e\u003cbr\u003eOrder directly from Biolabs Research. Pens are made to order and dispatched by overnight cold-chain courier.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat if overnight delivery is not available in my area?\u003c\/strong\u003e\u003cbr\u003eWe recommend the \u003ca href=\"\/products\/pt-141\"\u003ePT-141 10mg lyophilised vial\u003c\/a\u003e, which is stable at ambient temperature during normal courier transit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow should the pen be stored?\u003c\/strong\u003e\u003cbr\u003eKeep it refrigerated at 2–8 °C, protected from light. Do not freeze.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo you sell pen tips and accessories?\u003c\/strong\u003e\u003cbr\u003eYes. Pen tips, cartridges and pen cases are available in our \u003ca href=\"\/collections\/reconstitution-supplies-and-hardware\"\u003ereconstitution supplies\u003c\/a\u003e collection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the PT-141 pen for human use?\u003c\/strong\u003e\u003cbr\u003eNo. It is sold strictly for laboratory research and is not for human or veterinary use.\u003c\/p\u003e\u003ch3\u003eResearch-use notice\u003c\/h3\u003e\u003cp\u003eFor laboratory research use only. Not for human or veterinary use, not for consumption, and not a medicine, food or cosmetic. Supplied to qualified researchers; the purchaser is responsible for safe handling and for complying with applicable South African regulations. Statements on this page are product identification and handling information only.\u003c\/p\u003e","brand":"Biolabs Peptides","offers":[{"title":"10","offer_id":49793249870066,"sku":"PT-141-PRE-FILLED-PEN-10","price":1564.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/5410\/1746\/files\/ChatGPT_Image_Jul_19_2026_07_29_44_PM.png?v=1789974210"}],"url":"https:\/\/biolabsresearch.co.za\/collections\/melanocortin-research-peptides.oembed","provider":"Biolabs Peptides South Africa","version":"1.0","type":"link"}