两款修护霜的临床功效研究

Clinical Study on the Efficacy of Two Repair Creams

通过对比A、B两款修护霜的临床功效,研究角鲨烷、神经酰胺和植物甾醇类修护功效。每组至少选取30名面部肌肤干性或极度干性受试者,分别使用两款试验产品28天。采用皮肤水分流失测试、乳酸刺痛试验、Visia-CR型面部图像采集后分析皮肤泛红程度(a*值)。结果表明样品A修护霜(空白样品)仅仅具有降低皮肤敏感度的功效,样品B修护霜(含有角鲨烷、神经酰胺和植物甾醇类的样品)可以显著性降低经皮水分流失、皮肤泛红和皮肤敏感度,表明样品B更具有皮肤修护的功效。

Through the comparison of the clinical efficacy of two repair creams,the repairing effects of squalane,ceramides and phytosterols on skin were studied.At least 30 subjects with dry or extremely dry facial skin were selected in each group and applied with the two investigational products for 28 days,respectively.A transepidermal water loss test,a lactic acid tingling test,and a Visia-CR facial image acquisition were used to analyze the a*value of skin redness.The results showed that sample A(blank sample)only had the effect of reducing skin sensitivity,while sample B(sample containing squalane,ceramides and phytosterols)could significantly reduce transepidermal water loss,skin redness and skin sensitivity,thus indicating that the sample B was more effective in skin repair.