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Follikuläre Penetration

Ein entscheidender Penetrationsweg von topisch applizierten Substanzen

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Zusammenfassung

Die Kenntnis der Penetrationswege von topisch applizierten Substanzen ist Voraussetzung, um die Wirkung von Arzneimitteln und kosmetischen Produkten zu optimieren. Bisher ging man davon aus, dass Substanzen, die auf die Haut gelangen, über die Lipidschichten des Stratum corneum diffundieren und so die Barriere durchdringen. Jüngste Untersuchungen zeigen jedoch, dass den Hautanhangsorganen und insbesondere den Haarfollikeln eine wichtige Rolle bei den Penetrationsprozessen durch die Haut zukommt. Dabei gelangen die topisch applizierten Substanzen nicht in alle Haarfollikel hinein, sodass für die Penetration "offene" und "geschlossene" Follikeln unterschieden werden müssen. Die Ursachen für diesen Effekt werden im folgenden Beitrag diskutiert.

Abstract

The knowledge of penetration pathways in and through the skin is a prerequisite for the development and optimization of topically applied drugs and cosmetics. Skin penetration has been assumed to occur via diffusion though the lipid domains of the stratum corneum. Recent studies show that the skin appendages, especially the hair follicles, play an important role in skin penetration processes. Topically applied substances cannot enter all follicles. We discuss the reasons for the phenomenon of open and closed hair follicles.

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Correspondence to J. Lademann.

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Lademann, J., Otberg, N., Richter, H. et al. Follikuläre Penetration. Hautarzt 54, 321–323 (2003). https://doi.org/10.1007/s00105-003-0513-6

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  • DOI: https://doi.org/10.1007/s00105-003-0513-6

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