--- title: "Immune Support Peptides | PepTracker Pro" description: "Peptides studied for immune system modulation." lang: en json-ld: --- [Skip to main content](#main) **Educational information only.** This site does not provide medical advice. [Read full disclaimer](/disclaimer) [PepTracker Pro](/) [Home](/)[Peptides](/peptides)[Compare](/compare)[Glossary](/glossary)[Blog](/blog)[Calculators](/calculators)[Start Here](/start) [Open the App](https://app.peptrackerpro.com) [Peptides](/peptides)/ Immune Support # Immune Support Peptides Peptides studied for immune system modulation. ### Efzofitimod Medium Evidence A first-in-class, intravenous immunomodulatory fusion peptide derived from histidyl-tRNA synthetase that selectively binds neuropilin-2 (NRP2) to dampen inflammation in the lung; in Phase 3 development for pulmonary sarcoidosis, an interstitial lung disease. [Inflammation](/benefits/inflammation)[Immune Support](/benefits/immune-support) [View Details](/peptides/efzofitimod) [\+ Compare](/compare?select=efzofitimod)[](https://app.peptrackerpro.com/?add=efzofitimod) ### Epithalon Low Evidence A tetrapeptide studied for its potential to activate telomerase and influence biological aging markers. [Longevity](/benefits/longevity)[Anti-Aging](/benefits/anti-aging)[Sleep](/benefits/sleep)[Immune Support](/benefits/immune-support) [View Details](/peptides/epithalon) [\+ Compare](/compare?select=epithalon)[](https://app.peptrackerpro.com/?add=epithalon) ### Icotrokinra (ICOTYDE) High Evidence The first FDA-approved targeted oral macrocyclic peptide — an IL-23 receptor antagonist for moderate-to-severe plaque psoriasis, marking a new era for oral peptide therapeutics. [Skin](/benefits/skin)[Inflammation](/benefits/inflammation)[Immune Support](/benefits/immune-support) [View Details](/peptides/icotrokinra) [\+ Compare](/compare?select=icotrokinra)[](https://app.peptrackerpro.com/?add=icotrokinra) ### KPV Medium Evidence A tripeptide derived from alpha-MSH, studied for anti-inflammatory and gut-protective properties. [Inflammation](/benefits/inflammation)[Gut Health](/benefits/gut-health)[Skin](/benefits/skin)[Immune Support](/benefits/immune-support) [View Details](/peptides/kpv) [\+ Compare](/compare?select=kpv)[](https://app.peptrackerpro.com/?add=kpv) ### Larazotide Medium Evidence A synthetic peptide tight junction regulator in clinical trials for celiac disease, designed to prevent intestinal permeability caused by gluten exposure. [Gut Health](/benefits/gut-health)[Inflammation](/benefits/inflammation)[Immune Support](/benefits/immune-support) [View Details](/peptides/larazotide) [\+ Compare](/compare?select=larazotide)[](https://app.peptrackerpro.com/?add=larazotide) ### LL-37 Medium Evidence A human antimicrobial peptide studied for innate immunity, wound healing, and biofilm disruption. [Immune Support](/benefits/immune-support)[Wound Healing](/benefits/wound-healing)[Inflammation](/benefits/inflammation)[Skin](/benefits/skin) [View Details](/peptides/ll-37) [\+ Compare](/compare?select=ll-37)[](https://app.peptrackerpro.com/?add=ll-37) ### Pegcetacoplan High Evidence A PEGylated cyclic-peptide inhibitor of complement component 3 (C3) built from two compstatin (Cp05) peptide domains bridged by a 40-kDa PEG chain; marketed as Empaveli/Aspaveli (subcutaneous, for paroxysmal nocturnal hemoglobinuria and, since July 2025, C3 glomerulopathy and primary IC-MPGN) and Syfovre (intravitreal, for geographic atrophy in age-related macular degeneration). It is one of the few complement-targeting therapeutic peptides to reach the market. [Immune Support](/benefits/immune-support)[Inflammation](/benefits/inflammation) [View Details](/peptides/pegcetacoplan) [\+ Compare](/compare?select=pegcetacoplan)[](https://app.peptrackerpro.com/?add=pegcetacoplan) ### Selank Medium Evidence A synthetic peptide analog of tuftsin studied for anxiolytic and nootropic properties. [Anxiety Relief](/benefits/anxiety-relief)[Mood](/benefits/mood)[Cognition](/benefits/cognition)[Neuroprotection](/benefits/neuroprotection)+1 more [View Details](/peptides/selank) [\+ Compare](/compare?select=selank)[](https://app.peptrackerpro.com/?add=selank) ### Thymalin Low Evidence A thymic peptide preparation studied for immune system rejuvenation and age-related immune decline. [Immune Support](/benefits/immune-support)[Longevity](/benefits/longevity)[Anti-Aging](/benefits/anti-aging) [View Details](/peptides/thymalin) [\+ Compare](/compare?select=thymalin)[](https://app.peptrackerpro.com/?add=thymalin) ### Thymosin Alpha-1 High Evidence A thymic peptide approved in some countries for immune modulation, studied for viral infections and cancer adjunct therapy. [Immune Support](/benefits/immune-support)[Longevity](/benefits/longevity)[Inflammation](/benefits/inflammation) [View Details](/peptides/thymosin-alpha-1) [\+ Compare](/compare?select=thymosin-alpha-1)[](https://app.peptrackerpro.com/?add=thymosin-alpha-1) ### VIP Medium Evidence A neuropeptide with broad neuroimmune functions, studied for inflammatory conditions and nerve repair. [Nerve Repair](/benefits/nerve-repair)[Inflammation](/benefits/inflammation)[Immune Support](/benefits/immune-support)[Neuroprotection](/benefits/neuroprotection) [View Details](/peptides/vip) [\+ Compare](/compare?select=vip)[](https://app.peptrackerpro.com/?add=vip) Track Your Research with PepTracker Pro [Try the Free App →](https://app.peptrackerpro.com) [PepTracker Pro](/) Educational peptide information and research tracking tools. Not medical advice. #### Explore - [Peptide Directory](/peptides) - [Compare Peptides](/compare) - [Glossary](/glossary) - [Benefits](/benefits/sleep) #### Learn - [Blog](/blog) - [Calculators](/calculators) - [Start Here](/start) - [About](/about) #### Legal - [Editorial Policy](/editorial-policy) - [Research Disclaimer](/research-disclaimer) - [Disclaimer](/disclaimer) - [Privacy Policy](/privacy) - [Terms of Service](/terms) - [Contact](/contact) © 2026 PepTracker Pro. Educational purposes only. Not medical advice. 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