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N-palmitoylethanolamine and N-acetylethanolamine are effective in asteatotic eczema: results of a randomized, double-blind, controlled study in 60 patients

Yuan C, Wang X, Guichard A, Tan Y, Qian C, Yang L, Humbert P. Clinical Interventions in Aging, 2014; 9:1163-1169.

Randomised controlled trialHumansTopicalWith acetylethanolamine

This study tested palmitoylethanolamide together with acetylethanolamine. Its results cannot be assigned to palmitoylethanolamide alone. More combination studies.

Design
Randomised controlled trial
Subjects
60 women with mild to moderate asteatotic eczema on the lower legs, at one centre in Shanghai
Dose used in the study
An emollient with 0.3% palmitoylethanolamide and 0.21% acetylethanolamine, applied twice a day, compared with an emollient without them
Duration
28 days
What was measured
Clinical scores for redness, scaling, dryness and itch; skin hydration, water loss through the skin, and a nerve sensitivity threshold

What the authors reported

Both emollients improved the skin measures. Scaling and dryness improved more at day 28 with the palmitoylethanolamide emollient (P < 0.05), and the nerve sensitivity threshold returned to normal levels. No adverse events occurred with either product.

Limits of this study

The two emollients differed in more than one ingredient, so the difference cannot be assigned to palmitoylethanolamide alone. All participants were women at one centre, and the study ran for 28 days. The study was supported by GlaxoSmithKline China. The test product was made by Stiefel Laboratories.

Source

doi:10.2147/CIA.S65448

Entry checked against the full text at the publisher (Dove Medical Press) on 2026-09-21. The dose shown is the dose the researchers used. It is not a recommendation. How to read this page.