LOW POROSITY HAIR Low porosity hair is not very absorbent. It is less able to take in moisture and hair treatments. Products may accumulate on the surface. The hair becomes stiff in response to protein treatments. It takes longer to get completely wet in the bath or shower. It takes longer to dry. Steam: Heat from steam relaxes the cuticle, opening up the dead cells somewhat. This allows water vapor to get into the hair shaft. A people can try using a handheld steaming device, a heat cap, or a shower cap to trap steam around the hair. Humectants: These substances attract and trap moisture. Some examples of humectants include glycerin, hyaluronic acid, and honey. Look for shampoos, conditioners, or deep conditioning treatments that contain these. Lightweight oils: Products that contain lightweight oils may help seal in moisture. A 2003 studyTrusted Source found that out of mineral, sunflower, and coconut oil, the latter was best at penetrating the hair shaft. However, a more recent studyTrusted Source found that using coconut oil led to no improvement in hair health. Also, bear in mind that oils repel water, so it may help to use a light oil sparingly, and only when also using steam or a humectant. USE LESS PRODUCT Argan oil and grapeseed oil