In Vivo Study of a Natural Whitening Agent

A natural whitening agent to replace synthetic bioactives was developed.Xin Qi Bai(XQB)was composed of traditional Chinese medicine(TCM)and the whitening efficacy was tested in vivo.Qualified volunteers were selected and used cream with or without XQB for 8 weeks continuously.The individual type angle(ITA°),melanin index(MI)and the stain area(%)were tested after 0,2,4 and 8 weeks.XQB can increase ITA°value,decrease MI value and the stain area of skin.Results showed that XQB has good whitening efficacy in vivo,and is a natural whitening agent.

一款冻干面膜对特定皮肤屏障受损人群的功效性和安全性

探讨玉泽积雪草安心修护面膜(以下简称冻干面膜)在点阵激光术后对于屏障修护的功效性和安全性,对 24 例进行面部 CO_(2)点阵激光治疗后的受试者给予冻干面膜使用,通过临床评估指标和 VISIA 皮肤图像分析仪进行疗效评价。使用产品 7 天后,与点阵激光术后即刻相比,受试者面部斑点、皱纹、纹理、毛孔、红斑、红度和紫质的分值均下降,其中纹理、红斑、红度分值下降显著(P < 0.05);皮肤干燥程度下降,皮损积分上升,与点阵激光术前基础值相比无显著性差异(P > 0.05);79% 受试者评价使用感受为“舒适”及以上;发生 3 例轻度不良反应事件,仅局部表现瘙痒及散发性小丘疹,均未做额外处理,自行好转。说明冻干面膜能显著改善点阵激光术后面部纹理、红斑、红度,具有明显的修护皮肤屏障和改善肤质的作用,且安全性较高。

型钢支撑架体系在超厚筏板钢筋工程中的应用

超厚筏板基础是超高层建筑的根基所在,超厚筏板基础的钢筋支架施工是整个基础施工的重点,钢筋支架的应用确保了超厚筏板基础钢筋工程施工更加安全可靠。在此结合实际施工项目,介绍了型钢支撑架技术在超厚筏板基础钢筋工程中的应用,可供类似筏板基础钢筋工程施工参考。