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ss 331 peptide SS-31 is a synthetic amphipathic tetrapeptide

Published October Oct 18, 2026 12:16 AM

In the evolving field of cellular biology, researchers are constantly seeking compounds that can illuminate the complexities of bioenergetics. Among the most discussed compounds in recent literature is the SS 331 pept SS-31 (also known as Bendavia, Elamipretide, and MTP-131) is a small peptide (D-Arg- dimethyl-Tyr-Lys-Phe-NH2) that accumulates in mitochondria and  ide, often referred to in scientific circles by its well-known nomenclature, SS-31. As someone who follows the latest updates in laboratory research and biochemical inquiry, I have found that understanding the nuances of this molecule is essential for anyone interested in mitochondrial dynamics.

Understanding the Entity: What is SS-31?

At its core, SS-31 (also known as Elamipretide or MTP-131) is a small peptide—specifically, a synthetic mitochondria-targeting tetrapeptide—with the amino acid sequence D-Arg-dimethylTyr-Lys-Phe-NH2. Developed by researchers Hazel H. Szeto and Peter W. Schiller, this compound belongs to the Szeto-Schiller peptide class.

What makes this peptide particularly fascinating to the scientific community is its apparent capacity to accu Sep 16, 2025 — One peptide in particular, called SS-31, has shown a compelling amount of promise in slowing or mitigating aging-related changes. What's more,  mulate within the inner mitochondrial membrane. By localizing specifically to the lipid bilayers of mitochondria, it acts as a mitochondria-targeting antioxidant. This unique mechanism allows it to interact with cardiolipin, a critical phospholipid, SS-31 (10 mg), also known as elamipretide or MTP-131 (Bendavia), is a synthetic mitochondria-targeting tetrapeptide with the sequence D-Arg-dimethylTyr-Lys-Phe-  effectively stabilizing the mitochondrial structure.

Mechanism of Action and Bioenergetics

The primary interest in SS-31 is a mitochondria-targeted peptide that serves as a tool for studying mitochondrial bioenergetics, oxidative stress mechanisms, and cellular energy dynamics.

Research indicates that SS-31, a mitochondria-targeting antioxidant, plays a role in:

* Reducing Mitochondrial ROS: It helps mitigate the production of reactive oxygen species, which are often byproducts of inefficient energy production.

* Calcium Homeostasis: Scientific evidence shows that SS-31 alters divalent cation (calcium) distribution within the interfacial region, potentially reducing the energetic burden of calcium-induced stress.

* Structural Support: As SS-31: The Peptide That Targets the Mitochondrial Inner Membrane, it helps maintain the cristae structure, which is essential for efficient electron transport chain function.

Observed Effects in Scientific Literature

The mitochondrial targeted peptide SS-31 has been the subject of numero SS-31 Peptide | Benefits, Safety & Buying Advice [2026] us studies, ranging from cellul SS-31 50mg ar cultures to aged animal models.

1. Cognitive Performance: Studies have noted that t SS-31 10mg - Research Peptide he compound preserves cognitive performance in aged animal models, specifically showing improvements in spatial and working memory markers.

2. Mitochondrial Protection: Generally, SS-31 is reported to protect against mitochondrial dysfunction, providing a mechanism to study how cells maintain energy efficiency under stress.

3. Aging Mitigation: Researchers have noted that the compound has shown a compelling amount of promise in slowing or mitigating aging-related changes in various tissue types, particularly in skeletal muscle energetics.

4. Clinical Context: It is worth noting that Elamipretide (MTP-131, SS-31) has undergone clinical evaluation Elamipretide (SS-31, MTP-131) | Antioxidant Peptide , and it is FDA-approved for Barth syndrome in specific orphan drug designations, highlighting its significan SS-31 (also known as Elamipretide®, Bendavia®, and ce in rare disease research.

Laboratory Considerations and Purity

For those involved in rigorous scientific inquiry, the quality of the material is paramount. When sourcing a research-grade peptide – 10 mg per vial or larger quantities like SS-31 50mg, purity is the primary quality indicator.

SS-31 is a synthetic amphipathic tetrapeptide that is typically supplied in a lyophilized format to ensure stability. Because it is a delicate molecule, proper storage protocols are necessary to maintain its structural integrity. In high-level laboratory settings, researchers look for 99%+ purity levels to ensure that the results observed are attributable solely to the peptide itself, rather than impurities SS-31 Peptide Guide 2026: Benefits, Dosage, Protocol & or degradation products.

Conclusion

The SS 331 peptide remains one of the most intriguing molecules for those studying the fundamental drivers of cellular health. By providing a targeted approach to the mitochondria, it offers a window into how we might better understand and support biological systems. Whether you are investigating the nuances of SS-related pathways or broader mitochondrial health, the depth of research surrounding this compound continues to provide valuable insights into the mechanics of cellular energy and resilience.

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*Disclaimer: This article is for informational purposes for those interested in scientific research. It does not provide medical, prescription, or human health advice. All information regarding the use of peptides is strictly for laboratory and research-based contexts.*

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