涂粉和散粉能是能防晒,问题是用量不足就不能达到效果,但是用量太足又显得不自然。 (参考最近某一期COSMETICS杂志)。
“I personally prefer titanium dioxide and zinc oxide---they are powerful physical sunscreens and do not penetrate the skin." said Dr. Johson.
摘自”safe skin care during pregnancy".
所以含辛和太的防晒成分为主的,目前的理论是安全的。