Greasy hair can look oily and dull, and have a lank and lifeless appearance. It can look flat and heavy, and it never seems to stay clean and fresh. It takes on a stringy appearance within a few hours of shampooing and refuses to stay full and fluffy. Does this describe your hair? Do you ask the question, why is my hair greasy? Greasy hair can cause social embarrassment as others may judge that the sufferer has poor hygiene and does not wash their hair frequently enough, even if they actually wash it every day.
The grease found in hair is called sebum and is oil that is produced natural by the body. Each of the hairs on your head has a gland called the sebaceous gland immediately under the skin, this gland produces sebum. Oil in greasy hair protects each strand form split ends and dryness, and is in fact a sign of healthy hair. Sebum is made as lubrication for the skin and hair, providing a protective barrier and preventing drying. Sebum is the body’s own natural moisturizer.
Hormones called androgens can cause greasy hair by stimulating sebaceous glands, causing them to become over active and begin over producing sebum leading to an excess of sebum in the hair. Androgens are male hormones, and although they are present in both men and women, they are higher in men. Androgens make two things happen: First, they enlarge sebaceous glands. Second, they cause the increase of oil production from the sebaceous glands.
Because hormones play a role in the production of sebum, one of the causes of greasy hair is fluctuating hormone levels. Greasy hair is most commonly found in teenagers going through puberty, in women because of their monthly cycle or pregnancy, and older women going through the menopause. Stress is also known to affect hormone levels and can therefore be a contributory factor towards greasy hair. People with fine hair often find that they suffer from excessive greasiness, as they have more hair and follicles meaning there are more glands on the scalp, each producing sebum.
There are many external causes of greasy hair. Over washing your hair can cause increase sebum production as frequent washing can strip the hair and scalp of all oils causing the sebaceous glands to excrete more to combat this. A build-up of grease can occur due to washing your hair too often. Scrubbing your hair and scalp vigorously while washing you hair can stimulate hair grease. Touching your hair can also increase the glands to over-stimulate, as can vigorous brushing which can carry the oil throughout your hair. Environmental factors such as everyday pollutants can cause hair to look greasy, as can the over use of hair styling products as the products build-up at the roots.
There can also be a number of internal causes of greasy hair. I have already mentioned fluctuating hormone levels; however one of the leading causes when it comes to causes of greasy hair is your diet. Diets in the Western world are typically much greasier, higher in fat and sugar, processed and contain additives, the high fat content increasing levels of oil in the skin, potentially causing greasy hair. A diet that is low in vitamin B can also be a cause of greasy hair, along with the hormones often found in the meat of Western diets which can add to unbalanced hormones.
The secret of how to treat, cure, prevent and avoid greasy hair is to treat it from both the outside, and the inside. For the outside: avoid brushing your hair too frequently, and when you brush avoid brushing your hair vigorously. When you wash your hair, the best shampoo for greasy hair is a mild-ph extra cleansing/clarifying shampoo that is formulated for greasy hair. Avoid moisturizing shampoos as they can leave some oil in your hair to protect against dryness. When washing your hair, avoid scrubbing your hair and scalp vigorously, lightly massage your hair and scalp instead.
When shampooing, leave the shampoo in your hair for approximately 5 minutes for a better clean. Rinse and shampoo again if necessary. It’s up to you as to how often you should wash your hair. Once or twice a week is the ideal but to find your own balance of washing and oil production start with washing once a day, reducing how often you wash as you find that balance. If you are going to condition your hair, use a conditioner designed especially for greasy hair, and apply the conditioner not to the roots but to the mid and ends of your hair. If you use a hair dryer to style your hair, heat will stimulate oil production, so don’t let it get too hot.
For the inside: do everything you can to reduce any stress that you may have in your life. For your diet, reduce the amount of fat and dairy products, and avoid fried, fatty and greasy foods as much as possible. Consider vitamin B supplements in your diet. Avoid sugar and sugary foods like cakes, biscuits and soft drinks. Reduce the foods containing white flour like bread, pasta and pastries. Be sure to eat lots of nuts, seeds and whole grains, and leafy & green vegetables, salads and fresh fish.