Quick Fix, 以及Cover gray在有些超市里能买到。原理是把白发表面刷一层颜料，用起来方便。 Quick Fix是这个样子：

如果有几根或者一撮白头发，刷几下颜料就干了，可以保持到下次洗头。 亚马逊上有卖 [url=https://www.amazon.com/GRAY-Quick-Fix-Brown-Black/dp/B004P1WL7U/ref=sr_1_6_a_it?ie=UTF8&qid=1466622388&sr=8-6&keywords=quick+fix]https://www.amazon.com/GRAY-Quick-Fix-Brown-Black/dp/B004P1WL7U/ref=sr_1_6_a_it?ie=UTF8&qid=1466622388&sr=8-6&keywords=quick+fix[/url] Cover Gray看上去像口红，易于携带，方便实用。唯一的问题是有点像口红油乎乎的，穿衣服时有可能会蹭到衣服上。平时带着可以应急用。 亚马逊上有卖 [url=https://www.amazon.com/Cover-touch-Stick-Medium-Brown/dp/B0114MKHFU/ref=sr_1_3_s_it?s=beauty&ie=UTF8&qid=1466621573&sr=1-3&keywords=cover+gray]https://www.amazon.com/Cover-touch-Stick-Medium-Brown/dp/B0114MKHFU/ref=sr_1_3_s_it?s=beauty&ie=UTF8&qid=1466621573&sr=1-3&keywords=cover+gray[/url]