The ingredient, explained

Butyrospermum Parkii Butter

Shea butter has human research within a diaper emollient system.

EmollientOcclusiveSkin conditioningViscosity controlling

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Ingredient guide

What it is and what it does

Butyrospermum Parkii Butter is the fat obtained from the fruit of the Shea Tree, Butyrospernum parkii, Sapotaceae

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

Emollient: Helps soften and smooth the skin surface.
Occlusive: A surface-covering role that can reduce water loss through the skin. The amount of occlusion depends on the material and the formula.
Skin conditioning: A broad cosmetic role for maintaining skin condition. It does not identify a particular clinical benefit.
Viscosity controlling: Adjusts how thick or fluid a product is.

Function definitions: European Commission ingredient function definitions (SCCNFP/0299/00, pages 16 to 20) ↗ · PubMed: Measurement of oil and petrolatum occlusion ↗

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 research on a combination

Shea butter-based diapers provided similar erythema protection to petrolatum-based diapers and better protection than diapers without emollient.

What this does not tell us

The complete emollient and diaper system were tested, not isolated shea butter or a facial moisturiser.

Sources for this summary. PubMed 40189822 ↗

Research review checked Oct 1, 2026

Bounded review of supplied local candidates (6 candidate records), selective exact-name title/abstract screening, and targeted indexed primary-source searches. Not a systematic review or a claim of exhaustive coverage.