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Palmitoylethanolamide for Nickel Allergy: Plausible, Untested, and Worth Considering

Irene Palenca, Silvia Basili Franzin, Giovanni Sarnelli, Giuseppe Esposito. Biomedicines. 2026 Jan 14;14(1):177.

ReviewHumans

Design
Review
Subjects
Not applicable; this is a viewpoint paper, not a study
Dose used in the study
Not applicable; this is a viewpoint paper, not a study
Duration
Not applicable; this is a viewpoint paper, not a study
What was measured
Why palmitoylethanolamide could be worth considering for nickel allergy: PPAR-alpha signalling, mast cell stabilisation, VEGF expression and gut barrier integrity as candidate mechanisms, with no new experimental data

What the authors reported

The authors propose that PEA, through PPAR-alpha signalling, mast cell stabilisation, reduced VEGF expression and improved gut barrier integrity, could address nickel allergic contact dermatitis and systemic nickel allergy syndrome. They frame this as a viewpoint meant to raise questions rather than give definitive answers, and call for experimental and clinical studies.

Limits of this study

A viewpoint/hypothesis paper with no new data; the authors state PEA's use for nickel allergy is untested. It cannot show effect in people until such studies are done. The authors declare no conflicts of interest.

Source

PubMed 41595711 · doi:10.3390/biomedicines14010177

Entry checked against the abstract on PubMed on 2026-09-22. The dose shown is the dose the researchers used. It is not a recommendation. How to read this page.