---
title: Schagen 2017 — Peptide review
entity_type: Source
canonical_url: https://skinknowledgebase.com/sources/schagen-2017-peptide-review
date_modified: 2026-06-14
date_reviewed: 2026-06-14
mcp_eligible: true
summary: Schagen 2017 reviews cosmetic peptide research, including skin appearance mechanisms, formulation context, evidence limits, and anti-aging claim support.
source_type: other
original_source_url: https://www.mdpi.com/2079-9284/4/2/16
evidence_sources: []
product_fact_sources: []
---

# Schagen 2017 — Peptide review

## Quick Summary

Cosmetic peptide review used for topical peptide category context.

## What Studied

Review of topical peptides and their cosmetic dermatology roles.

## Main Findings

The review supports describing peptides as cosmetic appearance-support ingredients with gradual, limited visible-skin context.

## Why It Matters

It anchors Matrixyl as part of the topical peptide category rather than a structural firmness solution.

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