‌Low porosity hair is human hair that doesn't readily absorb water and treatments. Your hair may be low porosity if it takes a long time to wet and dry. If you use hair care products, they tend to ...

Hair porosity is your hair’s ability to absorb and retain moisture. This affects how well oils and moisture pass in and out of the outermost layer of your hair, known as the cuticle. To understand the ...

Low porosity hair is not very absorbent. It is less able to take in water and hair treatments, so products may accumulate on the surface. Compared with high porosity hair, it is less prone to breakage ...

Every product on this page was chosen by a Harper's BAZAAR editor. We may earn commission on some of the items you choose to buy. A strand of hair contains three layers: the cuticle, cortex, and ...

Women's Health may earn commission from the links on this page, but we only feature products we believe in. Why Trust Us? You know those women in shampoo ads with shiny, lustrous hair? For the longest ...