How it is caused: This is always a scalp problem in which the sebaceous glands produce more oil than is necessary to keep hair and scalp soft and protected. However, really oily hair and scalp are not as common as most people think. Often, the culprit is perspiration or the hair is just extremely fine. Scalp secretions (perspiration and oil) are normal but are passed onto the hair very quickly.
How it is treated: Because the condition is caused by hormones, there is no cure. It can be controlled by keeping the scalp and hair clean and moisturized. Follow the Aestelance care ritual of Cleanse, Tone and, Moisturize, and you can gain a day or two between shampoos.