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Research Collection

Antioxidant Peptides

Research compounds studied in the context of redox balance, reactive oxygen species, and cellular antioxidant defense systems.

Antioxidant Peptides are research compounds studied for their roles in mitigating oxidative stress and modulating cellular redox balance. This category spans direct free radical scavengers, mitochondria-targeted stabilizers, and redox cofactor systems, including glutathione, SS-31, NAD+, and MOTS-c. All compounds are offered strictly for laboratory research use, not for human or animal consumption.

Reviewed by the VivePeptides Research DeskLast reviewed

Research Catalog

Compounds in this collection

Glutathione research peptide vial

Glutathione

$70.00View
SS-31 research peptide vial

SS-31

$85.00View
NAD+ research peptide vial

NAD+

$80.00View
MOTS-c research peptide vial

MOTS-c

$75.00View

Research Overview

Antioxidant Peptides: Redox Biology Research Compounds

The Antioxidant Peptides collection encompasses research compounds selected for their documented roles in redox chemistry and oxidative stress models. Oxidative stress, the imbalance between reactive oxygen species production and antioxidant defense capacity, is implicated across a wide range of preclinical disease models, making this an active area of laboratory investigation.

This collection represents several distinct mechanism classes rather than a single pathway: glutathione functions as a direct-acting thiol antioxidant and enzymatic cofactor, SS-31 is a mitochondria-targeted peptide that interacts with inner membrane phospholipids, NAD+ serves as a redox cofactor central to electron transport and enzymatic signaling, and MOTS-c is a mitochondrial-derived peptide implicated in nuclear stress response signaling. VivePeptides sources each compound with batch-specific documentation and third-party purity verification, supporting reproducibility for researchers designing oxidative stress or mitochondrial function studies.

All items are intended strictly for in vitro or non-human research applications.

Four Distinct Redox Mechanism Classes

Glutathione, SS-31, NAD+, and MOTS-c each intervene at a different point in the oxidative stress cascade, from direct radical scavenging to mitochondrial membrane stabilization and nuclear signaling. This allows researchers to select a compound matched to the specific redox pathway under study.

Verified Purity and Documentation

Each compound in this collection is accompanied by a certificate of analysis confirming purity and identity. Batch-specific documentation supports reproducibility across oxidative stress and mitochondrial function assays.

Storage and Reconstitution Considerations

Redox-active compounds such as glutathione and NAD+ are sensitive to oxidation once reconstituted and require careful storage protocols. Researchers should account for stability windows when designing multi-day or repeated-dose in vitro protocols.

Compound Comparison

How these compounds compare

CompoundMechanism ClassResearch FocusDistinguishing Feature
GlutathioneDirect-acting thiol antioxidantCellular redox buffering, detoxification pathwaysEndogenous tripeptide, enzymatic cofactor role
SS-31Mitochondria-targeted membrane stabilizerCardiolipin binding, cristae structureSelective mitochondrial membrane localization
NAD+Redox cofactor, electron carrierElectron transport, sirtuin/PARP activityCentral redox and DNA-repair cofactor
MOTS-cMitochondrial-derived signaling peptideNuclear stress-response gene regulationMitochondrial genome-encoded, retrograde signaling

Mechanism & Research Context

Mechanism Classes and Study Design Considerations

What distinguishes this collection is the point of intervention each compound targets within the redox cascade, ranging from direct radical scavenging to upstream mitochondrial signaling. Preclinical literature has examined glutathione depletion as a marker and driver of oxidative injury across cell culture and animal models, with glutathione peroxidase and glutathione-S-transferase activity serving as common readouts. SS-31 research has focused on cardiolipin binding and its downstream effect on electron transport chain efficiency and mitochondrial-derived ROS output.

NAD+ studies typically examine redox cofactor depletion alongside sirtuin and PARP enzyme activity in models of oxidative stress and DNA damage repair. MOTS-c investigations center on its translocation to the nucleus under stress conditions and its role in transcriptional stress response. Researchers generally select compounds based on whether the target pathway is cytosolic, mitochondrial membrane-associated, or nuclear-signaling in nature.

Study design should account for solubility, reconstitution stability, and storage conditions specific to each peptide class.

Research FAQ

Frequently asked questions

What are antioxidant peptides used for in research?

Antioxidant peptides are used in research to study how compounds modulate cellular redox balance, scavenge reactive oxygen species, or support mitochondrial resilience under oxidative stress. Researchers commonly apply them in cell culture and animal models investigating oxidative injury, mitochondrial dysfunction, and redox signaling pathways. All applications discussed here are limited to laboratory research and are not intended for human or animal treatment.

What is the difference between glutathione and SS-31 in redox research?

Glutathione and SS-31 act through distinct mechanisms within the oxidative stress cascade. Glutathione is a direct-acting thiol antioxidant that neutralizes free radicals and serves as a cofactor for detoxification enzymes throughout the cell, while SS-31 is a mitochondria-targeted peptide that binds cardiolipin on the inner mitochondrial membrane to stabilize cristae structure and limit local ROS production. Researchers typically choose between them based on whether the study targets general cellular redox status or mitochondrial membrane integrity specifically.

How does NAD+ relate to oxidative stress research?

NAD+ functions as a redox cofactor central to electron transport and to enzymatic reactions, including those carried out by sirtuins and PARP enzymes, that respond to oxidative and genotoxic stress. Preclinical studies have examined NAD+ depletion as a consequence of oxidative injury and as a variable affecting cellular stress response capacity. Because NAD+ participates in numerous pathways beyond redox biology, researchers should define the specific readout, such as PARP activity or electron transport efficiency, before designing a study.

What makes MOTS-c relevant to oxidative stress models?

MOTS-c is a mitochondrial-derived peptide studied for its role in signaling between mitochondria and the nucleus under conditions of oxidative stress. Research has examined its translocation to the nucleus and its involvement in regulating stress-responsive gene expression. It is typically studied alongside other mitochondrial stress markers rather than in isolation.

How should researchers select among antioxidant peptides for a study?

Compound selection should be guided by the specific redox pathway or cellular compartment under investigation. Cytosolic or whole-cell antioxidant capacity studies often use glutathione, mitochondrial membrane studies often use SS-31, electron transport or enzymatic cofactor studies often use NAD+, and mitochondrial-to-nuclear signaling studies often use MOTS-c, with assay compatibility, reconstitution requirements, and expected compound stability also factored into the decision.

What purity and handling standards apply to antioxidant peptides from VivePeptides?

Antioxidant peptides sold by VivePeptides are accompanied by batch-specific documentation, including certificates of analysis confirming identity and purity. Because several compounds in this category, particularly glutathione and NAD+, are prone to oxidative degradation once in solution, researchers should follow proper reconstitution and storage protocols to preserve compound integrity. These products are supplied strictly for laboratory research use and are not intended for human or animal administration.

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All products are sold strictly for laboratory and scientific research use only. Not for human or animal consumption, diagnostic, or therapeutic use. Nothing on this page constitutes medical advice or a health claim.