2 Issue: Hair that is dry and has lost its luster 頭發干燥并失去光澤

"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.
馬諾莫尼醫生說：“當頭發角質層開始破壞，內部纖維暴露的時候，頭發就會變得干燥。”過度加熱將導致這種情況發生，尤其是對濕發加熱。她建議在用電吹風吹干頭發之前，先采用自然風干，并且使用日常護發素。請記住，毛纖維的顏色更容易損壞，所以染發的時候要格外小心。