防曬劑溶解性對防曬係數之影響

The Influence of Sun Protection Factor (SPF) and Protection Factor of UVA (PFA) for Solubility of UV-filter

10.29679/VJ.200807.0015

李佳晉；陳春蓉；張嘉芸；宋祖馥

防曬化妝品 ； 防曬劑 ； 溶解性 ； 防曬係數SPF、PFA

萬能學報

30期（2008 / 07 / 01）

185 - 192

繁體中文

根據過去的研究，部分防曬化妝品中所添加的防曬劑，本身就是一個光不穩定性的物質，長期使用可能造成皮膚的刺激甚至過敏，因此本次研究利用四種化妝品常用的防曬劑，將其溶解在四種油脂中，結果顯示有三種油脂對於四種防曬劑皆可溶解，而另一種油脂對四種防曬劑，則大多爲不可溶。而對防曬劑可溶的油脂相對於不可溶的油脂，可得到較高的防曬係數(SPF、PFA)，這些結果可提供廠商在設計防曬化妝品配方時，選擇合適的油脂，作爲油相基劑，如此在得到相同防曬係數時，可降低防曬劑的添加量，不僅可減少對皮膚產生刺激、過敏的現象，同時可降低成本的支出。

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