Your hair’s relationship with moisture affects everything from product selection to styling success. Hair porosity, or how well your strands absorb and retain moisture, can explain why some products ...

Hair porosity determines how your strands absorb and retain moisture, making it one of the most crucial factors in developing an effective hair care routine. Understanding your hair’s porosity level ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." You know those women in shampoo ads with shiny, lustrous hair? For the longest time, I didn't understand ...

Healthy hair does not happen by chance. It requires attention, patience, and most importantly, understanding. Many people invest in expensive shampoos, masks, and serums, yet still struggle with ...

I overused serums on my fine, low porosity hair and triggered protein overload. Here’s how I fixed brittle, stiff strands and ...