Millennials catching their first signs of gray hair are tapping into an old trick that might be new to them: warming a bit of coconut oil in your hair before you shampoo. It’s called pre-shampoo oiling, and has been a part of hair care routines for generations. A 2003 study published in the Journal of Cosmetic Science found that coconut oil, when applied before washing, was able to reduce the amount of protein loss from hair better than mineral oil and sunflower oil. You can easily feel that difference in gray strands, which tend to be drier than pigmented hair.
Why does gray hair act differently?
