Selank Pre-Mixed Pen 5mg Peptide

The Selank Pre-Mixed Pen is a precision-engineered research delivery system containing a synthetic heptapeptide analogue pre-mixed with bacteriostatic water, supplied at ≥98% purity for streamlined laboratory workflows. Designed to reduce preparation time and minimise dosing errors, this kit provides researchers with a ready-to-use cartridge system for consistent, reproducible experimental conditions. For research use only. Not for human or veterinary use. Not for clinical, diagnostic, or consumptive applications.

Product Overview

Direct Anti Peptide is proud to offer the Selank Pre-Mixed Pen — a complete, researcher-focused peptide delivery solution engineered for precision and convenience. Selank is a synthetic analogue of the endogenous immunomodulatory peptide tuftsin, extended with a proline-glycine-proline tripeptide sequence to enhance metabolic stability. This pre-mixed format eliminates the need for manual reconstitution in the laboratory, allowing research teams to focus entirely on their experimental protocols rather than preparation logistics. Whether purchasing individual cartridges or a full pen kit, researchers benefit from a reliable, consistent, and compliant research tool available for sale online at competitive pricing.

Peptide Structure & Amino Acid Sequence

Selank is a synthetic heptapeptide with the amino acid sequence Thr-Lys-Pro-Arg-Pro-Gly-Pro. It is structurally derived from tuftsin (Thr-Lys-Pro-Arg), a naturally occurring tetrapeptide with well-documented immunomodulatory properties, to which the tripeptide Pro-Gly-Pro has been appended to significantly improve resistance to enzymatic degradation. This structural modification results in a more metabolically stable compound with a prolonged research window, making it a widely studied subject in peptide science, cognitive neuroscience, and psychopharmacology research.

Chemical & Physical Characteristics

Selank presents as a white to off-white lyophilised powder prior to reconstitution. In the pre-mixed pen format supplied by Direct Anti Peptide, the peptide has been reconstituted under controlled laboratory conditions using pharmaceutical-grade bacteriostatic water, ensuring uniform concentration throughout the cartridge. Key identifiers include a molecular weight of approximately 751.9 g/mol and the molecular formula C₃₃H₅₇N₉O₉. The compound demonstrates good aqueous solubility, which supports its use in solution-based in vitro and in vivo research applications.

Purity & Analytical Verification (HPLC & MS)

Every batch of Selank supplied through Direct Anti Peptide is manufactured to a verified purity of ≥98%, confirmed via high-performance liquid chromatography (HPLC) and mass spectrometry (MS) analysis. These dual analytical methods ensure that each cartridge meets the rigorous quality benchmarks expected by professional research institutions. HPLC profiling confirms the absence of significant impurity peaks, while MS verification confirms accurate molecular mass and sequence integrity. Certificates of Analysis (CoA) are available upon request, providing full batch-level traceability for laboratory documentation and compliance records.

Quality Control & Lyophilisation Integrity

Prior to pre-mixing, the Selank peptide is produced through solid-phase peptide synthesis (SPPS) and subjected to lyophilisation — a freeze-drying process that removes residual moisture and preserves structural integrity during storage and transit. The pre-mixed cartridges are prepared under strict quality-controlled conditions, with each unit inspected for clarity, particulate matter, and concentration consistency before being sealed and dispatched. This rigorous quality control pipeline ensures that researchers receive a product that is analytically sound and research-ready upon arrival.

Safety, Handling & Laboratory Precautions

Selank Pre-Mixed Pen cartridges should be handled exclusively by trained laboratory professionals operating within appropriate research environments. Standard laboratory personal protective equipment (PPE) — including gloves, eye protection, and lab coats — should be worn at all times when handling peptide solutions. Researchers must ensure that all handling, storage, and disposal procedures comply with their institutional biosafety guidelines and applicable local regulations. This product is strictly not intended for human or veterinary administration.

Reconstitution, Packaging & Storage

The Selank Pre-Mixed Pen arrives ready for use, with the peptide cartridge pre-mixed with bacteriostatic water, eliminating manual reconstitution steps in the laboratory. Each kit includes one pre-mixed cartridge, one durable peptide cartridge pen, one protective carry case, and three pen needle tips. Once opened, cartridges should be stored at 2–8°C and used within the manufacturer’s recommended timeframe to maintain solution stability. Unopened cartridges should be stored in a cool, dry environment away from direct light and moisture. Do not freeze pre-mixed cartridges.

Intended Research Use & Market Positioning

Selank has attracted significant academic and institutional research interest due to its documented activity across multiple neurological and immunological pathways. Research into this peptide has explored its potential role in modulating immune function, supporting memory retrieval processes, influencing cognitive performance metrics, and exhibiting stable neuropsychotropic and anxiolytic-adjacent properties in preclinical models. The pre-mixed pen format positions this compound as a premium research tool for laboratories prioritising workflow efficiency, dosing accuracy, and reproducibility. Direct Anti Peptide offers this product as part of a growing catalogue of high-purity pre-mixed peptide research solutions.

Ordering, Availability & Fulfillment

The Selank Pre-Mixed Pen is available to order online now through Direct Anti Peptide, with options for individual cartridges or a complete pen kit. Researchers seeking the best price on Selank for sale will find competitive rates across all available configurations. Orders are processed promptly, with secure packaging designed to maintain cold-chain integrity during transit. Our fulfillment team ensures that all orders are dispatched efficiently, with tracking provided for full visibility from dispatch to delivery. Buy online today and experience the Direct Anti Peptide commitment to quality, compliance, and researcher satisfaction.

Legal & Regulatory Disclaimer

For research use only. Not for human or veterinary use. Not for clinical, diagnostic, or consumptive applications. The Selank Pre-Mixed Pen is sold exclusively for legitimate scientific research purposes by qualified professionals in compliant laboratory settings. Direct Anti Peptide makes no claims regarding the therapeutic, diagnostic, or medicinal properties of this compound. All purchasers are solely responsible for ensuring compliance with applicable national and regional laws governing the procurement, handling, and use of research peptides. This product must not be used on or administered to humans or animals under any circumstances.