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Effect of Physical and Chemical Hair Removal Methods on Skin Barrier Function in vitro: Consequences for a Hydrophilic Model Permeant

机译:物理毛发去除方法对体外皮肤屏障功能的影响:亲水性模型的后果

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Background: Although very common in our society, the effect of hair removal on physiological skin parameters and on the ingress of applied chemicals has not been systematically investigated. Thus, as a first step, the aim of the present study was to elucidate the effect of hair removal through epilation (electric epilation, waxing) and depilation (dry and wet shaving, depilatory cream) on skin properties in vitro using the porcine ear model. Methods: Attenuated total reflection Fourier transform infrared spectroscopy, measurement of the transepidermal water loss (TEWL), visualization by capacitance-based contact imaging, confocal Raman spectroscopy (CRS), diffusion cell studies and tape stripping experiments were employed. Results: Increased TEWL and altered skin permittivity maps were observed. Decreased stratum corneum thickness was observed after waxing. Diffusion cell studies showed increased skin permeation especially in case of dry shaving, electric epilation and waxing. Conclusion: Considering CRS and diffusion cell data, a moderate if significant decrease in skin barrier function was found after hair removal by dry shaving (physical skin/material interaction) and epilation methods (plucking out the entire hair, for example, by electrical epilation and waxing). Subsequent experiments will include testing of different permeants covering a broad range of physicochemical properties in vitro and confirming our findings in vivo. (C) 2018 S. Karger AG, Basel
机译:背景:虽然在我们的社会中很常见,但仍未系统地研究了脱毛对生理皮肤参数和应用化学品进入的影响。因此,作为第一步,本研究的目的是阐明通过悬垂(电动脱毛,打蜡)和脱毛(干湿剃须,脱毛霜)在体外使用猪耳模型对皮肤性能的脱毛(干湿和湿剃。 。方法:衰减总反射傅里叶变换红外光谱,测量Transepidermal水丢失(TEWL),采用基于电容的接触成像,共聚焦拉曼光谱(CRS),扩散细胞研究和胶带剥离实验的可视化。结果:观察到增加的TEWL和改变的皮肤渗透率图。在打蜡后观察到地层厚度降低。扩散细胞研究表明皮肤渗透增加,特别是在干燥剃须,电动脱毛和打蜡的情况下。结论:考虑到CRS和扩散细胞数据,在干剃(物理皮肤/材料相互作用)和脱毛方法(例如,通过电动脱毛和电气脱毛)脱毛后发现皮肤屏障功能的显着降低。打蜡)。随后的实验将包括在体外覆盖广泛的物理化学性质并在体内确认我们的研究结果的不同渗透性的测试。 (c)2018年S. Karger AG,巴塞尔

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