The ingredient, explained

Papain

Papain has published research relevant to the stated experimental context.

AntistaticHair conditioningSkin conditioning

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Ingredient guide

What it is and what it does

Papain

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

Antistatic: Reduces the build-up of static electrical charge on surfaces.
Hair conditioning: Improves cosmetic hair properties such as softness, shine or combability.
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

Animal and laboratory research

Papain degraded tight-junction proteins in keratinocytes and increased water loss and sensitization responses in mice.

What this does not tell us

Cell and mouse hazard study, not an incidence estimate in cosmetic users. Exposure conditions and enzyme activity matter; the study supplies no exfoliation benefit claim.

Sources for this summary. PubMed 25705851 ↗

Research review checked Oct 1, 2026

Selective exact-identity review of 4 supplied local candidates and the targeted primary-source search recorded below. Bounded review, not a systematic search.

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