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Cutting your hair more often doesn't make it grow faster: Getting rid of the ends of your hair doesn't directly effect hair growth. The ends of your hair don't effect the follicles in your scalp, which determine how much your hair grows. Trimming simply keeps hair...

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...