LL-37 Thymosin Alpha-1 Peptide

LL-37 Thymosin Alpha-1 Peptide Stack from Direct Anti Peptide is a dual-component research-grade peptide combination supplied at ≥98% purity, rigorously verified by HPLC and mass spectrometry. This stack pairs two of the most studied immunomodulatory peptides available in the research market today. For research use only. Not for human or veterinary use. Not for clinical, diagnostic, or consumptive applications.

Product Overview

The LL-37 Thymosin Alpha-1 Peptide Stack represents an innovative research tool for scientists investigating immune system modulation, antimicrobial defense mechanisms, and adaptive immunity pathways. Available for sale at Direct Anti Peptide, this combination offers laboratories a convenient, high-purity dual-peptide solution for advanced immunological research. Both components are lyophilized, independently verified, and supplied ready for laboratory reconstitution protocols.

Peptide Structure & Amino Acid Sequence

LL-37 is a 37-amino acid cathelicidin-derived antimicrobial peptide. Its sequence is characterized by an amphipathic alpha-helical structure that enables interaction with microbial membranes. It is derived from the C-terminal domain of the human cathelicidin protein hCAP18. Thymosin Alpha-1 is a 28-amino acid thymic peptide, N-terminally acetylated, originally isolated from thymosin fraction 5. Its sequence begins with Ac-Ser-Asp-Ala-Ala-Val-Asp-Thr… and is widely recognized for its role in T-cell maturation and immune signaling research.

Chemical & Physical Characteristics

• LL-37: Molecular Formula: C₂₀₅H₃₄₀N₆₀O₅₃S; Molecular Weight: ~4,493 Da
• Thymosin Alpha-1: Molecular Formula: C₁₂₉H₂₁₅N₃₃O₅₅S; Molecular Weight: ~3,108 Da
• Appearance: White to off-white lyophilized powder (both components)
• Solubility: Soluble in aqueous buffers under standard laboratory conditions
• Storage Stability: Stable under recommended cold-chain conditions

Purity & Analytical Verification (HPLC & MS)

Each component of the LL-37 Thymosin Alpha-1 Peptide Stack supplied by Direct Anti Peptide is independently tested and confirmed at ≥98% purity. High-performance liquid chromatography (HPLC) is used to assess peak homogeneity and eliminate impurity fractions, while mass spectrometry (MS) confirms exact molecular weight and sequence integrity. Certificates of Analysis (CoA) are available upon request, providing full analytical traceability for each production batch.

Quality Control & Lyophilization Integrity

Both peptides undergo freeze-drying (lyophilization) under controlled pharmaceutical-grade conditions to remove residual moisture and maximize long-term stability. Each vial is sealed under inert atmosphere to prevent oxidative degradation. Lyophilized peptides retain structural integrity and biological activity profiles across extended storage periods when maintained under appropriate conditions. Direct Anti Peptide applies multi-stage quality control protocols at synthesis, purification, and packaging stages.

Safety, Handling & Laboratory Precautions

These peptides are supplied exclusively for qualified laboratory use by trained research professionals. Standard laboratory safety practices must be observed at all times. Personnel should wear appropriate personal protective equipment (PPE) including gloves, lab coat, and eye protection. Avoid inhalation of lyophilized powder. These compounds must not be administered to humans or animals under any circumstances. Disposal must comply with all applicable local, national, and institutional regulations governing research biochemicals.

Reconstitution, Packaging & Storage

Upon receipt, store both peptide vials at -20°C or below in a frost-free freezer, protected from light and moisture. Reconstitution should be performed using sterile, research-grade aqueous solvents appropriate for the intended laboratory application, following institutional protocols. Once reconstituted, aliquot and store at -80°C to minimize freeze-thaw degradation. Packaging is designed for laboratory integrity, with tamper-evident sealing and clear batch labeling for full chain-of-custody documentation.

Intended Research Use & Market Positioning

The LL-37 Thymosin Alpha-1 Peptide Stack is positioned as a premium dual-peptide research tool for immunology, microbiology, and translational research laboratories. LL-37 is extensively studied for its broad-spectrum antimicrobial activity against bacteria, viruses, and fungi, as well as its roles in innate immune modulation, wound healing models, and anti-inflammatory pathway research. Thymosin Alpha-1 is investigated for its capacity to enhance T-cell activation and maturation, supporting research into adaptive immunity, infection response modeling, and immunodeficiency studies. Together, these peptides offer researchers a complementary investigative framework for comprehensive immune research programs.

Ordering, Availability & Fulfillment

Direct Anti Peptide offers the LL-37 Thymosin Alpha-1 Peptide Stack for sale online with fast, reliable fulfillment to qualified research institutions worldwide. Order now to benefit from our best price guarantee, secure checkout, and dedicated customer support. All orders are processed promptly with full documentation and discreet, compliant packaging. Bulk research orders and institutional procurement inquiries are welcomed — contact our team for volume pricing details.

Legal & Regulatory Disclaimer

For research use only. Not for human or veterinary use. Not for clinical, diagnostic, or consumptive applications. The LL-37 Thymosin Alpha-1 Peptide Stack is sold exclusively as a laboratory research reagent. Direct Anti Peptide makes no claims regarding therapeutic efficacy, safety for biological administration, or suitability for any use outside of controlled research environments. Purchasers are solely responsible for ensuring compliance with all applicable laws, regulations, and institutional guidelines governing the acquisition, handling, and use of research peptides in their jurisdiction.