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The ingredient, explained

Lysozyme

An uncontrolled clinical series examined lysozyme ointment.

Skin conditioning
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Ingredient guide

What it is and what it does

N-Acetylmuramide glycanohydrolase; Muramidase

About this ingredient: EU CosIng ingredient registry (via Open Beauty Facts taxonomy) ↗

Skin conditioning
A broad cosmetic role for maintaining skin condition. It does not identify a particular clinical benefit.

Function definitions: European Commission ingredient function definitions (SCCNFP/0299/00, pages 16 to 20) ↗

Registry functions describe possible formulation roles, not results for a finished product. A dictionary entry is not an approval or a safety assessment.

A closer look

What the research shows

Human topical treatment study

Lesion improvement and two itching-related withdrawals were reported.

What this does not tell us

Small, heterogeneous uncontrolled medical series; concentration and enzyme source are unverified.

Sources for this summary. PubMed 610695 ↗

Research review checked Oct 1, 2026

Review supplied candidate titles and available abstracts selectively for exact identity; targeted primary PubMed/publisher searches. This is not an exhaustive systematic review.

Ingredient research is not proof that a product containing this ingredient works.

Read the 1 selected study

Follow the formula

Products containing this ingredient

All 1 products ↗

From the wider catalogue. Linked by the ingredient list, without an efficacy ranking.

Names and identifiers

Registry identity

N-Acetylmuramide glycanohydrolase; Muramidase

INCI name on ingredient lists
LYSOZYME
CAS registry number
9001-63-2
EC number
232-620-4
Other recorded names (1)
  • Lysozyme chloride [JAN]

Sources for this ingredient record