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Context, anatomy, and key evidence

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matrikine signaling peptide

Palmitoyl Pentapeptide-4

Published evidence · coverage incomplete

Anatomy in the research

Anatomy evidence is still being assembled.

These are anatomical mentions in cited research—not established treatment targets or proof of benefit in people.

This publication has no anatomy passages that meet our source-linking checks yet. Read the available findings ↓

General anatomy view only. No peptide-specific structures are highlighted.

At a glance

What is it—and why does it matter?

An introduction is not yet available. The findings below address specific research questions, not a complete account of this peptide.

This published profile is a reference in progress. Findings retain their source context; missing topics are marked below.

What is it?

A molecule, not a product name.

Identity

Palmitoyl pentapeptide-4 is identified in this source by the common cosmetic name Matrixyl.

Sources[1]pubmedSynergistic Effects of Injectable Platelet-Rich Fibrin and Bioactive Peptides on Dermal Fibroblast Viability and Extracellular Matrix Gene Expression: An In Vitro Study.Cosmetic peptides, such as palmitoyl pentapeptide-4 (Matrixyl)
Source records
1
Independent studies
1

Evidence boundary: Applies only to the source-defined population, formulation, dose, and assessment period.

Exact passages, locators, and provenance
  1. supports · Source-backed record
    “Cosmetic peptides, such as palmitoyl pentapeptide-4 (Matrixyl)”

    Synergistic Effects of Injectable Platelet-Rich Fibrin and Bioactive Peptides on Dermal Fibroblast Viability and Extracellular Matrix Gene Expression: An In Vitro Study. · Abstract

    pubmed:40871567:7d94d93296d6:7d94d93296d6

How does it work?

Target, response, and disposition.

This profile does not yet contain a published summary for this topic. This is a coverage gap, not evidence that no research exists.

What has been studied?

What the evidence says.

This profile does not yet contain a published summary for this topic. This is a coverage gap, not evidence that no research exists.

Risks and interactions

Risks, organized for scanning.

This profile does not yet contain a published summary for this topic. This is a coverage gap, not evidence that no research exists.

Products and regulatory status

Same ingredient. Different records.

This profile does not yet contain a published summary for this topic. This is a coverage gap, not evidence that no research exists.

Administration context

The practical clinical context.

This profile does not yet contain a published summary for this topic. This is a coverage gap, not evidence that no research exists.

Research status + gaps

What still needs better answers?

  • No publishable claim yet for: administration, contraindication, effect, interaction, mechanism, regulatory, safety
  • 7 compiled claim(s) withheld by automated assurance: assurance_score_below_0.58 (5), assurance_score_below_0.72 (1), current_regulatory_source_required (1), extraction_ambiguity (6), high_risk_requires_regulatory_or_two_independent_sources (2), no_direct_support (6)
  • A source-backed introductory overview is not yet available.

These are the limits of this profile, not an exhaustive list of scientific uncertainties.

References + discovery

Open the records yourself.

  1. Synergistic Effects of Injectable Platelet-Rich Fibrin and Bioactive Peptides on Dermal Fibroblast Viability and Extracellular Matrix Gene Expression: An In Vitro Study. ↗

    pubmed · published 2025-08-19 · retrieved 2026-08-28T12:35:21Z

Publication history and provenance

Version 1 · Automated assessment · 2026-08-28T12:35:21Z

9cff76531e20c0d9a25116e4a900f88171440e2cc8925d8db57558f68f0bf287