Peptide directory

Find a peptide

Public profiles inside a larger governed registry

Search by peptide name, brand, or research code. Open a full evidence profile or the published sources available for a record still in development. Source publication does not mean a completed scientific appraisal.

The registry is an expanding catalog, not a complete list of every peptide. A missing public result does not mean no research exists.

Published profiles

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405 peptide records

  • Antimicrobial peptide

    Thanatin

    Published sources available; full evidence profile in development.

    4 published source records. Source publication does not imply scientific appraisal.

    Open sources for Thanatin →
  • Thymic peptide mixture/reference entity

    Thymalin

    Published sources available; full evidence profile in development.

    2 published source records. Source publication does not imply scientific appraisal.

    Open sources for Thymalin →
  • Synthetic thymopoietin-derived pentapeptide

    Thymopentin

    Published sources available; full evidence profile in development.

    4 published source records. Source publication does not imply scientific appraisal.

    Open sources for Thymopentin →
  • Immune-modulating thymic peptide

    Thymosin alpha-1

    Substantial

    Thymosin alpha-1 (thymalfasin) is an N-terminally acetylated 28-amino-acid peptide originally isolated from thymic tissue and corresponding to a region of prothymosin alpha. It has context-dependent immunomodulatory effects involving dendritic-cell maturation, innate pattern-recognition signaling, T-cell function, cytokine regulation, and restoration of immune responsiveness; these mechanisms do not imply benefit for every immune or infectious condition.

    Evidence and record details

    Evidence integrity map

    Human 18Preclinical 2Durable IDs 26Open signals 3
    Publication state
    Published profile
    Verified source records
    25 source records verified
    Chemistry record
    Chemistry record on file
    Regulatory entries
    2 published regulatory entries
    Research questions
    23 open research questions
    Evidence review date
    No documented human review recorded

    Source verification checks records; it does not itself approve scientific conclusions.

  • Endogenous peptide

    Thymosin beta-4

    Endogenous peptide

    Emerging

    Thymosin beta-4 is an endogenous peptide studied in actin-related biology and experimental tissue repair. It should be distinguished from marketed products or fragments such as TB-500, which may differ in identity and evidence.

    Evidence and record details

    Evidence integrity map

    Human 0Preclinical 2Durable IDs 3Open signals 1
    Publication state
    Published profile
    Verified source records
    72 source records verified
    Chemistry record
    Chemistry record on file
    Regulatory entries
    2 published regulatory entries
    Research questions
    No open questions documented
    Evidence review date
    No documented human review recorded

    Source verification checks records; it does not itself approve scientific conclusions.

  • Thymic peptide hormone

    Thymulin

    Published sources available; full evidence profile in development.

    2 published source records. Source publication does not imply scientific appraisal.

    Open sources for Thymulin →
  • GIP/GLP-1 receptor agonist

    Tirzepatide

    Peptide analog

    Substantial

    Tirzepatide is a long-acting peptide agonist at GIP and GLP-1 receptors. Controlled programs evaluate glycemic control, chronic weight management, withdrawal, obesity-related obstructive sleep apnea, HFpEF with obesity, and MASH. Regulatory conclusions remain indication- and label-specific.

    Evidence and record details

    Evidence integrity map

    Human 15Preclinical 0Durable IDs 27Open signals 2
    Publication state
    Published profile
    Verified source records
    25 source records verified
    Chemistry record
    Chemistry record on file
    Regulatory entries
    2 published regulatory entries
    Research questions
    20 open research questions
    Evidence review date
    Documented human review recorded Sep 8, 2026

    Source verification checks records; it does not itself approve scientific conclusions.

  • Endogenous immunomodulatory tetrapeptide

    Tuftsin

    Published sources available; full evidence profile in development.

    3 published source records. Source publication does not imply scientific appraisal.

    Open sources for Tuftsin →
  • Ghrelin receptor agonist peptide

    Ulimorelin

    Published sources available; full evidence profile in development.

    3 published source records. Source publication does not imply scientific appraisal.

    Open sources for Ulimorelin →
  • Endogenous CRF-family peptide

    Urocortin 1

    Published sources available; full evidence profile in development.

    3 published source records. Source publication does not imply scientific appraisal.

    Open sources for Urocortin 1 →
  • Endogenous CRF-family peptide

    Urocortin 2

    Published sources available; full evidence profile in development.

    2 published source records. Source publication does not imply scientific appraisal.

    Open sources for Urocortin 2 →
  • Endogenous CRF-family peptide

    Urocortin 3

    Published sources available; full evidence profile in development.

    3 published source records. Source publication does not imply scientific appraisal.

    Open sources for Urocortin 3 →
  • Endogenous guanylate cyclase C ligand peptide

    Uroguanylin

    Published sources available; full evidence profile in development.

    4 published source records. Source publication does not imply scientific appraisal.

    Open sources for Uroguanylin →
How the public directory relates to the 500-record Master Registry

master registry transparency

500 master records, with governance status shown explicitly

WPF-MASTER-REGISTRY-TRANSPARENCY-1.0
501
Master records
467
Governed records
34
Review-deferred
458
Peptide acquisition eligible
9
Governed comparators

The master registry has 467 governed identities from 501 records. 34 remain review-gated. Nine governed records are scientific comparators, leaving 458 peptide identities in the source acquisition cohort. Database reconciliation is a separate step. The 51 profiles shown on this directory are a represented public-profile subset, not the size of the master registry. All 51 public profiles on this render reconcile to governed peptide identities in that registry; unknown, duplicate, deferred, or comparator identities fail closed instead of appearing publicly.

Explore the full Master Registry →
What the profile status labels mean

Evidence, chemistry, and regulatory counts include only records that crossed the relevant public-publication gate. A zero means none published in that lane—not that nothing is known. “No governed record published” is a publication-state disclosure; internal or pending material may exist without appearing in public counts. Source verification, editorial publication, and accountable scientific appraisal are distinct states; a source count alone does not approve a scientific conclusion.

Recently updated public records

When each public profile record was last changed — not clinical or scientific activity.

Peptide Directory — World Peptide Foundation