Common causes of dandruff include scalp dryness, oily skin, or a fungal infection. Anyone can experience ... Treatment: To treat an oily scalp, shampoo your hair regularly to remove excess sebum.

You have something in common with polar bears. Polar bears and humans produce sebum. It's an oily substance that comes from ...

Dr. Angela Lamb: So for people that have straighter-patterned hair, and like I said, what happens with that patterned hair is the oils, the sebum ... your scalp getting infected from all the ...

An international team of scientists have found that sebum, or the grease that coats hair, is what allows polar bears to stay insulated and thrive in some of Earth’s most punishing climates.