Wednesday, October 1, 2008

Causes of greasy hair, and best products/shampoo for greasy hair

By Jennifer Summers

Greasy hair never seems to stay fresh and clean, and can look heavy and flat. Within a few hours of shampooing it refuses to stay full and light and it takes on a stringy appearance. Along with looking oily, greasy hair can appear lifeless, lank and dull. Does this sound familiar to you? Do you ask yourself "why is my hair greasy?" Even if they wash it everyday, others can judge that the sufferer does not wash their hair frequently and doesn't have good hygiene. This can cause much social embarrassment.

Grease found in greasy hair is natural body oil called sebum. Sebum is produced by the sebaceous gland. Each hair has a sebaceous gland immediately under the skin. Greasy hair is healthy hair as the oil (sebum) is produced to stop each hair strand from drying and to stop the ends splitting. Sebum is produced by the body to lubricate hair and skin and prevents drying by providing a protective barrier. Sebum is your own built-in moisturizer for the body.

Greasy hair is excess of sebum in the hair and comes as a result of an over production of sebum (oil) from over active sebaceous glands, stimulated by hormones called androgens. Androgens are male hormones that are present in both men and women, but are higher in men. Androgens do two things: First, they enlarge the sebaceous glands in the skin. Second, they cause these glands to increase oil production.

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.

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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