List of Anti-Inflammatory Peptides

List of Anti-Inflammatory Peptides. Complete list of anti-inflammatory peptides with mechanisms, pricing, and where to buy. KPV, BPC-157, TB-500, GHK-Cu, and more. Key Takeaways Anti-inflammatory peptides target NF-kB, cytokine, and oxidative stress pathways without broad immunosuppression KPV, BPC-157, TB-500, and GHK-Cu are the most widely researched peptides for inflammation Mechanism of action varies — some modulate NF-kB directly, others reduce inflammation through mitochondrial or hormonal pathways Research peptides are not approved for human anti-inflammatory use and should stay in a research-only context Chronic inflammation is a root driver of metabolic disease, autoimmune conditions, neurodegeneration, and accelerated aging. Traditional anti-inflammatory drugs (NSAIDs, corticosteroids) come with well-documented side effects — GI damage, immunosuppression, and cardiovascular risk with long-term use. Peptide-based approaches offer a different paradigm: targeted modulation of specific inflammatory pathways without the broad systemic suppression that makes conventional drugs problematic. This article covers major anti-inflammatory research peptides with published mechanisms. Each entry focuses on research-use compounds, mechanism of action, pricing, and sourcing information. Research Peptides with Anti-Inflammatory Mechanisms The following peptides are available for research and laboratory use. They are not intended for human therapeutic use but have published studies documenting anti-inflammatory mechanisms. Each is sourced from third-party tested suppliers. Anti-Inflammatory Mechanisms: How Each Peptide Works KPV — NF-kB Pathway Suppression KPV (Lys-Pro-Val) is a C-terminal tripeptide fragment of alpha-melanocyte stimulating hormone (alpha-MSH). It is arguably the most directly anti-inflammatory peptide on this list. Published research demonstrates that KPV enters cells and directly interacts with NF-kB signaling — the master switch controlling inflammatory gene expression. Unlike full-length alpha-MSH, KPV achieves this without activating melanocortin receptors, which means its anti-inflammatory activity operates through an independent intracellular mechanism. Getting et al. (2003) showed that KPV suppressed inflammatory cytokine production even in the presence of melanocortin receptor antagonists, confirming receptor-independent activity. Subsequent studies have focused on KPV's effects in gut inflammation models, where it reduced mucosal inflammation markers without causing immunosuppression. This selectivity is what makes KPV particularly interesting — it dampens pathological inflammation without compromising the immune system's ability to fight infection. Read our full KPV peptide guide for detailed mechanism breakdowns. BPC-157 — Multi-Pathway Tissue Repair BPC-157 (Body Protection Compound-157) is a 15-amino-acid peptide originally isolated from human gastric juice. Its anti-inflammatory effects are secondary to its primary mechanism: accelerating tissue repair through angiogenesis, growth factor upregulation, and nitric oxide system modulation. Published studies document BPC-157 reducing inflammatory markers in tendon, muscle, ligament, and GI tissue injury models. The anti-inflammatory mechanism appears to involve multiple pathways simultaneously. BPC-157 upregulates growth hormone receptors, promotes blood vessel formation at injury sites, and modulates the nitric oxide system — all of which contribute to faster resolution of inflammation. Unlike direct NF-kB inhibitors, BPC-157 reduces inflammation by accelerating the repair process itself, which naturally resolves the inflammatory cascade. Animal studies have shown BPC-157 protecting against NSAID-induced GI damage, which is particularly notable given that NSAIDs are the most commonly used anti-inflammatory drugs. This gastroprotective effect, combined with its tissue repair properties, makes BPC-157 one of the most broadly studied peptides for inflammation-adjacent applications. TB-500 — Thymosin Beta-4 Anti-Inflammatory Fragment TB-500 is a synthetic version of Thymosin Beta-4, a 43-amino-acid protein involved in cell migration, angiogenesis, and tissue repair. Its anti-inflammatory mechanism centers on actin sequestration — TB-500 binds to G-actin monomers, regulating cytoskeletal dynamics that are critical for inflammatory cell migration and wound healing. Published research shows TB-500 reducing pro-inflammatory cytokines (TNF-alpha, IL-1beta, IL-6) while promoting anti-inflammatory mediators. Studies in cardiac injury models demonstrated reduced fibrosis and inflammation following TB-500 administration. The peptide also promotes differentiation of regulatory T cells, which play a key role in resolving inflammation and preventing autoimmune responses. GHK-Cu — Copper Peptide Gene Modulation GHK-Cu (glycyl-L-histidyl-L-lysine copper complex) is a naturally occurring tripeptide found in human plasma whose levels decline significantly with age. A Broad Institute Connectivity Map analysis revealed that GHK-Cu modulates expression of over 4,000 human genes, including many involved in inflammatory pathways. Specifically, GHK-Cu downregulates genes associated with NF-kB activation and pro-inflammatory cytokine production while upregulating genes involved in antioxidant defense. The copper-binding mechanism is central to GHK-Cu's anti-inflammatory effects. Copper is a cofactor for superoxide dismutase (SOD), a critical antioxidant enzyme. By delivering copper to tissues, GHK-Cu supports endogenous antioxidant capacity, reducing oxidative stress that drives chronic inflammation. Published wound healing studies consistently show reduced inflammatory markers and accelerated tissue remodeling in GHK-Cu-treated models. SS-31 — Mitochondrial Anti-Inflammatory Targeting SS-31 (Elamipretide, D-Arg-Dmt-Lys-Phe-NH2) is unique on this list because it targets inflammation at the mitochondrial level. It selectively binds to cardiolipin in the inner mitochondrial membrane, stabilizing the electron transport chain and reducing mitochondrial reactive oxygen species (ROS) production. Since mitochondrial ROS are upstream activators of NLRP3 inflammasome and NF-kB pathways, reducing them at the source has downstream anti-inflammatory effects throughout the cell. Clinical trials for Barth syndrome and other mitochondrial diseases have documented SS-31's ability to improve mitochondrial function. The anti-inflammatory effects are a consequence of improved mitochondrial efficiency — when mitochondria work properly, they produce less ROS, which means less inflammasome activation and less chronic inflammatory signaling. Humanin is another mitochondrial-derived research peptide discussed around cytoprotection, apoptosis regulation, and cellular stress response; compare the Humanin peptide for sale page for product-specific context. NAD+ — Sirtuin-Mediated Inflammation Control NAD+ (nicotinamide adenine dinucleotide) is not a peptide in the traditional sense, but NAD+ injections are commonly included in anti-inflammatory protocols due to their mechanism of action. NAD+ activates sirtuins (particularly SIRT1 and SIRT3), which are NAD-dependent deacetylases that directly suppress NF-kB transcriptional activity. Published research shows SIRT1 deacetylates the p65 subunit of NF-kB, reducing its ability to drive inflammatory gene expression. NAD+ levels decline approximately 50% between ages 40 and 60, which correlates with increased systemic inflammation (often called "inflammaging"). Restoring NAD+ levels through subcutaneous injection supports sirtuin activity, which in turn modulates inflammatory pathways. Learn more about the full range of benefits in our NAD+ injections guide . Comparing Anti-Inflammatory Peptides by Mechanism Understanding how these peptides differ mechanistically helps clarify which approaches target which inflammatory pathways. KPV and GHK-Cu both modulate NF-kB, but through different mechanisms — KPV acts intracellularly on the NF-kB complex directly, while GHK-Cu works through gene expression modulation. BPC-157 and TB-500 reduce inflammation indirectly through tissue repair acceleration. SS-31 targets the mitochondrial source of inflammatory ROS. NAD+ works through sirtuin-mediated deacetylation of NF-kB subunits. For a broader overview of all peptide categories beyond inflammation, see our comprehensive list of peptides and what they do . Frequently Asked Questions What is the most anti-inflammatory peptide? KPV is the most directly anti-inflammatory peptide based on published research. It suppresses NF-kB signaling through a receptor-independent intracellular mechanism, reducing inflammatory cytokine production without causing immunosuppression. BPC-157 and TB-500 also have strong anti-inflammatory data but work primarily through tissue repair pathways rather than direct inflammatory pathway inhibition. Are anti-inflammatory peptides approved for human use? No. Research peptides like KPV, BPC-157, TB-500, GHK-Cu, and SS-31 are not approved for anti-inflammatory use in humans. PeptideStack discusses them as research compounds, not as treatments, prescriptions, or human-use recommendations. Can you stack anti-inflammatory peptides? In research contexts, peptides targeting different inflammatory mechanisms are sometimes studied together. For example, KPV (NF-kB suppression) and BPC-157 (tissue repair) target complementary pathways. However, combination protocols have limited published safety data. Any therapeutic use should be discussed with a qualified healthcare professional. How do anti-inflammatory peptides compare to NSAIDs? NSAIDs work by inhibiting cyclooxygenase (COX) enzymes, blocking prostaglandin synthesis broadly. Anti-inflammatory peptides typically target more specific pathways — NF-kB signaling, mitochondrial ROS, or sirtuin activation — which may offer more selective anti-inflammatory effects. Most anti-inflammatory peptides discussed here are still in the research phase. What peptide is best for gut inflammation? KPV and BPC-157 have the most published research relevant to gut inflammation. KPV studies have focused specifically on mucosal inflammation models, showing reduced inflammatory markers in intestinal tissue. BPC-157 was originally isolated from gastric juice and has extensive published data on GI tissue protection and repair, including protection against NSAID-induced gut damage. Disclaimer: This article is for informational and educational purposes only. PeptideStack does not provide medical advice — consult a qualified healthcare professional before starting any treatment. Research peptides are for laboratory use only and are not approved for human consumption. Related reading: List of Peptides and What They Do · What Are NAD+ Injections Good For? PeptideStack page context: visitors can use the header navigation to reach the product catalog, blog, calculators, supplier pages, discount-code pages, contact page, legal policies, shipping policy, refund policy, privacy policy, terms, and research disclaimer. 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