When shampooing, concentrate on cleansing the scalp, which is where skin oil accumulates, as the shampoo is rinsed out, it will clean the length of the hair. Scalp massage may help. Proponents of massage, claim myriad benefits, including an increase in circulation to the scalp, which causes the hair bulb to be flooded with the nutrients necessary for healthy hair growth. However, the scalp is already one of the most vascularized areas of the body. There may be a placebo or anti-stress component, which could account for the limited success in a few people.
Dull hair is due to cuticle damage.
Healthy cuticle layers lay flat, much like shingles on a roof, making the hair naturally shiny when they reflect light. Many people don't think of hair loss as a skin condition, but that's exactly what it is. Dandruff, a seasonal condition, is the excessive shedding of dead skin cells from the scalp. It most often occurs in the winter months and is exacerbated by excessive hair spray or gel use, dry indoor air, tight fitting hats and infrequent shampooing. Folliculitis describes an infection and inflammation of the hair follicle Ingrown Hairs.