ArticleInternational journal of cosmetic science2026
Penetration enhancement effects of topically applied crosslinked hyaluronic acid.
Article in International journal of cosmetic science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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8 authors.
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Abstract
objectiveIn this manuscript, we report that crosslinked hyaluronic acid (HA), a skincare active with well-documented hydration and skin protection benefits, can act as a penetration enhancer for the topical delivery of skincare actives. High-performance liquid chromatography (HPLC) and matrix-assisted laser desorption/ionization mass spectrometry imaging (MALDI-MSI) studies revealed that crosslinked HA can boost the topical delivery of both small-molecule actives and macromolecules alike.
methodsPorcine ear skin and human skin explants were used for the HPLC and MALDI-MSI studies, respectively. Topical delivery studies were conducted with simple cosmetic vehicles containing either the active of interest or the active of interest plus crosslinked HA. Delivery studies were conducted for 24 h, after which skin explants were analysed to measure the level of topically delivered active.
resultsHPLC analysis revealed that crosslinked HA selectively boosted the topical delivery of hydrophilic actives, which we attributed to the strong water-binding properties of crosslinked HA. MALDI-MSI revealed that crosslinked HA could also boost the topical delivery of a medium-molecular-weight HA species (~200-400 kDa), demonstrating that the penetrating enhancing properties of crosslinked HA benefit both small molecules and macromolecules alike.
conclusionsCrosslinked HA can boost the topical delivery of relevant skincare actives that range in size from small-molecule actives (<500 Da) to large macromolecules (>10 000 Da) like linear HA itself. Combined with its well-established and previously documented skin benefits, this makes crosslinked HA a highly versatile ingredient for topical skincare products.
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