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.

Greasy hair is actually an excess of sebum in hair which is a result of overactive sebaceous glands over-producing sebum, stimulated by hormones known as androgens. Although they are present in both men and women, androgens are male hormones and are higher in men. Androgens do two things: One, they increase the size of sebaceous glands in the skin. Two, they cause the sebaceous glands to increase the production of oil.

As hormones have a role in sebum production, fluctuating hormone levels can be one of the causes of greasy hair. Greasy hair can most commonly be found in older women experiencing the menopause, teenagers in puberty, and women in general because of their monthly cycle or pregnancy. Stress can also be a cause of greasy hair as it can affect hormone levels. People who have fine hair can sometimes suffer form greasy hair because they have more hair follicles and more hair follicles means more sebum producing glands on the scalp.

There are a number of external factors in that cause greasy hair. Washing your hair too often can increase the production of sebum as the sebaceous glands produce more sebum to combat the stripping of oils from the scalp and hair which can happen as a result of frequent washing. Vigorous hair and scalp scrubbing can stimulate hair grease. Touching hair can also over-stimulate glands, as can brushing vigorously which carry oil through your hair. Pollutants in the everyday environment can cause hair to look greasy, along with product build-up at the roots from over-use of hair styling products.

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 best way of avoiding, preventing, treating and getting rid of greasy hair is to treat it from the outside and the inside. On the outside: steer clear of brushing your hair too frequently, and too vigorously. Avoid using a moisturizing shampoo as this can leave some oil in the hair. An extra cleansing or clarifying shampoo that has a mild-ph is the best shampoo to use for greasy hair. When shampooing, massage you hair and scalp lightly and do not scrub your hair and scalp.

For a more thorough cleanse, leave the shampoo in for about 5 minutes. You can always rinse your hair and shampoo a second time. How often you need to wash your hair is down to you. Ideally you should wash your hair 1-2 times per week. To find what is right for you, begin washing daily and then reduce the frequency to find your ideal balance of oil production and washing. If you plan to use a conditioner on your hair, apply the conditioner to the mid and ends of you hair only, and be sure to use a conditioner made for greasy hair. If you are using a hairdryer for hair styling don’t let the dryer get too hot, heat can cause the production of more oil.

On the inside: with your diet, Reduce the number of foods you eat that contain white flour such as pasta, pastries and bread. Increase the amount of green and leafy vegetables in your diet, along with seeds, nuts, whole grains, salads, fresh fish and vegetables. Avoid sugar and foods containing sugar e.g. soft drinks, biscuits and cakes. Reduce the amount of fat in your diet, avoiding fried, greasy and fatty foods. Consider supplementing vitamin B in your diet. Reduce and eliminate as much stress as you can from your day to day life.

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