The Healthy Hair Professor

This was fun! Came out super cute

Must use booking link… Discount applied at the time of service

Hair porosity is a measure of how well your hair can absorb and retain moisture. It’s determined by the structure of the hair cuticle—the outermost layer of each strand—which is made of overlapping scales, similar to shingles on a roof. How tightly or loosely these scales lie affects how water, oils, and products move in and out of the hair.

If the cuticle layers are tightly packed, moisture has a harder time entering the hair, but once it does, it stays in longer. If the cuticles are more raised or damaged, moisture enters easily but also escapes quickly. This is why some people feel like their hair never seems to get wet, while others feel like their hair soaks up water instantly but dries out just as fast.

Hair porosity can be influenced by genetics, but also by things like heat styling, chemical treatments, sun exposure, and harsh products. Understanding your hair’s porosity helps you choose the right products and routines, so your hair stays hydrated, strong, and healthy.