Sunflower Seed Oil

What is it?

A linoleic-acid-rich plant oil used as a barrier-supportive emollient, well studied in both cosmetic and clinical dermatology contexts, including for infant and malnourished-child skin care.

What does it do?

According to PubMed, a 2025 randomized controlled trial in 212 Bangladeshi children with severe acute malnutrition found that adjunctive topical sunflower seed oil therapy improved skin barrier function and reduced infection risk, working through local cutaneous rather than systemic immune effects (DOI: https://doi.org/10.1038/s41390-025-04602-z). A 2025 narrative review further describes sunflower seed oil's linoleic- and oleic-acid-rich composition as restoring lipid bilayer organization and ceramide synthesis, citing clinical evidence of reduced transepidermal water loss, improved hydration, and accelerated wound healing in xerosis and atopic dermatitis -- while noting oils high in oleic acid can, in some cases, compromise barrier function instead (DOI: https://doi.org/10.1007/s13346-025-01939-0).

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