The ingredient, explained

Panthenol

A moisturising ingredient studied in topical formulas; dexpanthenol is its D form.

HumectantAnti-inflammatoryAntistaticHair conditioningSkin conditioning

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Ingredient guide

What it is and what it does

Butanamide, 2‚4-dihydroxy-N--3-hydroxypropyl--3‚3-dimethyl-, -2R--; dl-Panthenol

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

Humectant: Helps attract and retain moisture.
Anti-inflammatory: Research category concerning reduced inflammation. A discovery tag does not establish that an ingredient treats inflammation at the amount used in a product.
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) ↗ · National Cancer Institute: Anti-inflammatory definition ↗

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 research

A blinded, vehicle-controlled dexpanthenol study reported increased hydration and reduced water loss after seven days. Another study compared formulas with 0.5%, 1% or 5% panthenol, reporting lower water loss after 30 days with the 1% and 5% formulas.

What this does not tell us

The dexpanthenol abstract does not give sample size or concentration. The second abstract does not report randomisation or sample size. A panthenol label alone does not reveal the exact form, dose or performance of the finished product.

Sources for this summary. PubMed 10965426 ↗PubMed 21982351 ↗

Research review checked Sep 30, 2026

Selected primary sources were reviewed for the existing research brief on 30 September 2026, with exact ingredient, route and combination limitations recorded. This was a bounded editorial review, not a systematic search.

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