Scalp skin is identical in makeup to the rest of the skin on your body, but its surface has a few key differences. The skin of the scalp secretes more oil, called sebum, than skin elsewhere on the body. That excess oil combined with the darkness that hair creates on the surface makes the scalp more conducive to the growth of microorganisms, such as those that cause dandruff.
Myth vs Fact: Skin on your scalp has the same makeup as skin everywhere else on your body.
The correct answer is:
Myth vs Fact: Rinsing your hair with cold water after shampooing will make your hair shinier.