---
title: Hyaluronic acid: A key molecule in skin aging
entity_type: Source
canonical_url: https://skinknowledgebase.com/sources/hyaluronic-acid-key-molecule-skin-aging
date_modified: 2026-05-11
date_reviewed: 2026-05-11
mcp_eligible: true
source_type: peer_reviewed
original_source_url: https://pubmed.ncbi.nlm.nih.gov/23467280/
evidence_sources: []
product_fact_sources: []
---

# Hyaluronic acid: A key molecule in skin aging

## Quick Summary

Review discussing hyaluronic acid in skin, water-binding, and skin-aging context.

## What Studied

Peer-reviewed background on hyaluronic acid in skin biology and appearance context.

## Main Findings

The review describes hyaluronic acid as a water-associated molecule with roles in skin hydration and appearance.

## Why It Matters

It supports consumer explanation of HA as a humectant-style skincare ingredient.

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