润发油

例句：

1. 1. She applied the hair conditioner after washing her hair.
   她洗完头发后使用了护发素。
2. 2. I use a hair moisturizer to keep my hair healthy and shiny.
   我用护发素来保持我的头发健康有光泽。
3. 3. The hair moisturizer is essential for maintaining healthy hair.
   护发素对于保持健康的头发至关重要。