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<p>Onychomycosis, a prevalent fungal infection, and psoriasis, a chronic immune disorder affecting the nail plate, present therapeutic challenges due to the limited efficacy of current treatments, often leading to prolonged therapy and a high relapse rate. The highly cross-linked keratin network of the nail plate acts as a barrier, impeding effective drug delivery. This pioneering study explores a novel approach using a tattoo device to enhance drug penetration through the nail. Ciclopirox olamine and clobetasol lacquers were selected as the model formulations. Drug permeation tests conducted on non-treated, filed (mechanically abraded), and tattooed nails demonstrated significantly higher drug permeation in tattooed nails, suggesting the potential of this delivery method. Nail tattooing offers a simple method to enhance topical therapy, allowing treatment initiation in the clinic and continuation at home.</p>

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Nail tattooing: a novel and minimally invasive technique for enhancing drug penetration through the nail

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年3月26日

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  • Carlos Bendicho-Lavilla,
  • Victoria Díaz-Tomé,
  • Iria Seoane-Viaño,
  • Vinicius de-Monte-Vidal,
  • Francisco J. Otero-Espinar

摘要

Onychomycosis, a prevalent fungal infection, and psoriasis, a chronic immune disorder affecting the nail plate, present therapeutic challenges due to the limited efficacy of current treatments, often leading to prolonged therapy and a high relapse rate. The highly cross-linked keratin network of the nail plate acts as a barrier, impeding effective drug delivery. This pioneering study explores a novel approach using a tattoo device to enhance drug penetration through the nail. Ciclopirox olamine and clobetasol lacquers were selected as the model formulations. Drug permeation tests conducted on non-treated, filed (mechanically abraded), and tattooed nails demonstrated significantly higher drug permeation in tattooed nails, suggesting the potential of this delivery method. Nail tattooing offers a simple method to enhance topical therapy, allowing treatment initiation in the clinic and continuation at home.