Split Ends

Each hair strand has about seven to twelve layers of cuticle scales. The cuticle layers protect the inside of the strand, which is called the cortex. In healthy hair, the scales should lie flat along the cortex. The acid mantle lubricates the outermost layer of the...

If all hair is made up primarily of protein, then why is everyone's hair so different? Why does a shampoo that works well on one person's hair not work well on another's? The answer lies in the physical structure of hair. There are three factors that affect the...

Genes determine the growing stages of the hair. There are three stages of hair growth. The Anagen or active growing stage, during which time each hair bulb has an attached root sheath. On the average 90 percent of a person’s hair is in this stage which lasts from two...