SS31 Peptide Market 2025: Efficacy Data, Product Comparisons & Sourcing Guide for Industry Growth

Core Molecular Specs & Technical Index

The SS31 peptide, also known as Elamipretide or MTP-131, is a mitochondrial-targeted tetrapeptide with the sequence D-Arg-Dmt-Lys-Phe-NH2. This small molecule is engineered to selectively bind to cardiolipin, a phospholipid found exclusively in the inner mitochondrial membrane. By stabilizing this interaction, SS31 peptide enhances mitochondrial electron transport chain efficiency and reduces reactive oxygen species (ROS) production. For B2B buyers in cosmetic formulation and laboratory research, the core value lies in its potent antioxidant mechanism that targets the primary source of cellular oxidative stress, offering a distinct advantage over conventional free-radical scavengers.

• Molecular Formula: C31H47N7O5, with a molecular weight of approximately 613.75 g/mol, ensuring high membrane permeability and bioavailability.
• Purity Standard: Industry-grade SS31 peptide is available at ≥98% purity (HPLC), while research-grade options reach ≥99% for preclinical studies.
• Solubility Profile: Highly soluble in water and saline buffers (≥50 mg/mL), facilitating easy incorporation into aqueous formulations and injection-ready solutions.
• Stability Parameters: Lyophilized powder remains stable for 24 months at -20°C; reconstituted solutions should be used within 72 hours when stored at 4°C.
• Bioavailability: Due to its small size and D-amino acid content, SS31 peptide exhibits enhanced resistance to enzymatic degradation, improving in vivo half-life compared to L-form peptides.

Industry data from 2024 indicates that the global mitochondrial-targeted peptide market is projected to grow at a CAGR of 8.3% through 2030, with SS31 peptide accounting for over 35% of research peptide procurement in anti-aging and metabolic disorder studies.

Manufacturing & Quality Control

Production of SS31 peptide follows a rigorous solid-phase peptide synthesis (SPPS) protocol, typically using Fmoc chemistry on a Rink amide resin. The process involves sequential coupling of protected amino acids, including the non-natural D-arginine and 2,6-dimethyltyrosine (Dmt), which are critical for mitochondrial targeting and stability. After cleavage and deprotection, the crude peptide undergoes preparative HPLC purification to achieve the desired purity threshold. Quality control is paramount, with each batch subjected to multiple analytical methods to ensure consistency and safety for downstream applications.

• Purification: Reverse-phase HPLC with C18 columns, achieving baseline separation of target peptide from truncated sequences and deletion impurities.
• Mass Spectrometry: ESI-MS or MALDI-TOF verification confirms molecular weight within ±0.5 Da tolerance.
• Purity Analysis: Analytical HPLC with UV detection at 220 nm and 280 nm, reporting area percent purity with a certificate of analysis (CoA).
• Residual Solvent Testing: GC-MS screening for acetonitrile, TFA, and other process solvents, ensuring levels below ICH Q3C limits.
• Endotoxin Testing: LAL assay for bacterial endotoxins, with a specification of <0.5 EU/mg for research-grade material.

Commercial Application Scenarios

SS31 peptide serves as a versatile raw material across multiple B2B sectors, from cosmetic ingredient suppliers to contract research organizations. In cosmetic formulation, it is incorporated into anti-aging serums and creams at concentrations of 0.1–1.0%, targeting mitochondrial dysfunction in skin cells to reduce fine lines and improve dermal elasticity. For laboratory research, SS31 peptide is used in cell culture models of oxidative stress, ischemia-reperfusion injury, and neurodegenerative diseases, typically at doses ranging from 1–100 µM. Bulk wholesale buyers, such as peptide libraries and biotech firms, procure SS31 peptide in gram-to-kilogram quantities for preclinical toxicology studies and formulation development.

• Cosmetic Formulation: Added to water-phase ingredients at pH 5.5–6.5, combined with stabilizers like trehalose to maintain peptide integrity during shelf storage.
• Lab Research: Reconstituted in sterile PBS or cell culture medium for acute treatment in mitochondrial respiration assays (Seahorse XF analysis).
• Bulk Wholesale: Supplied as lyophilized powder in vacuum-sealed vials or bulk containers, with custom packaging options for GMP-compliant manufacturing.

ss31 peptide VS Ordinary Low-Grade Peptides

Bulk Purchase Selection Guide

When sourcing SS31 peptide for commercial or research purposes, buyers must navigate common pitfalls such as mislabeled purity, inadequate storage conditions, and lack of third-party verification. A systematic approach to supplier evaluation ensures that the procured material meets the required specifications for downstream applications. The following checklist outlines critical selection standards for bulk procurement.

• Common Pitfalls: Avoid suppliers offering SS31 peptide without a certificate of analysis, as purity claims may be unverified. Also, beware of excessively low pricing, which often indicates truncated sequences or residual solvents.
• Selection Standards: Prioritize vendors that provide HPLC and MS data for each batch, along with stability studies under recommended storage conditions. Verify that the supplier follows ISO 9001 or similar quality management systems.
• Buyer Checklist: Confirm purity (≥98%), endotoxin levels (<0.5 EU/mg), and peptide content (≥80% net peptide). Request a sample for in-house testing before committing to large orders.

Core Product Advantages

The SS31 peptide offered by our platform is distinguished by three key attributes: exceptional purity, proven stability, and cost-effective pricing backed by technical support. Each batch is synthesized using optimized SPPS protocols and purified to ≥98% with full analytical documentation, ensuring reproducibility in research and formulation. The inclusion of D-amino acids and Dmt residue provides superior resistance to proteolysis, extending the peptide's active window in biological systems. For bulk buyers, our tiered pricing model offers significant savings without compromising quality, and our technical team provides formulation guidance and stability data to facilitate seamless integration into your workflows.

• Purity: Guaranteed ≥98% by HPLC, with each batch accompanied by a detailed CoA including MS and purity chromatograms.
• Stability: Lyophilized powder stable for 24 months at -20°C; reconstituted solutions maintain activity for 72 hours at 4°C.
• Cost Performance: Competitive bulk pricing for gram-to-kilogram orders, with volume discounts and custom packaging options.
• Technical Support: Access to formulation protocols, solubility data, and application notes for cosmetic and research use.

Frequently Asked Questions

Q1: What is the recommended storage condition for SS31 peptide to maintain its stability?
A: SS31 peptide should be stored as a lyophilized powder at -20°C, protected from moisture and light. Under these conditions, it remains stable for up to 24 months. Once reconstituted in sterile water or PBS, it should be used within 72 hours if kept at 4°C, or aliquoted and frozen at -20°C for longer storage, avoiding repeated freeze-thaw cycles.

Q2: How does SS31 peptide differ from other mitochondrial-targeted antioxidants like MitoQ?
A: While both target mitochondria, SS31 peptide binds specifically to cardiolipin to stabilize the electron transport chain, reducing ROS production at the source. MitoQ, in contrast, is a ubiquinone derivative that accumulates in mitochondria via a triphenylphosphonium cation. SS31 peptide's mechanism is more direct in terms of mitochondrial membrane stabilization, and its peptide structure allows for easier formulation in aqueous solutions.

Q3: What purity level is required for SS31 peptide used in cosmetic formulations versus laboratory research?
A: For cosmetic formulations, a purity of ≥98% is standard to ensure product safety and efficacy, with endotoxin levels controlled. For laboratory research, especially in cell-based assays, ≥99% purity is recommended to minimize confounding effects from impurities. Always request a certificate of analysis from the supplier to confirm the purity and batch-specific data.