2 Issue: Hair that is dry and has lost its luster 头发干燥并失去光泽

"Hair becomes dry when the cuticle starts to break down and the
inner fiber is exposed," Dr. Mirmirani says. Excessive heat can cause
this--especially heat applied to wet hair. She recommends air-drying your
hair partially before blow drying, and using a daily conditioner. Remember that hair fiber with
color is more prone to damage, so be extra cautious if you color-treat your hair.
马诺莫尼医生说：“当头发角质层开始破坏，内部纤维暴露的时候，头发就会变得干燥。”过度加热将导致这种情况发生，尤其是对湿发加热。她建议在用电吹风吹干头发之前，先采用自然风干，并且使用日常护发素。请记住，毛纤维的颜色更容易损坏，所以染发的时候要格外小心。