Sunday, December 14, 2008

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

By Jennifer Summers

Greasy hair can appear stringy and fail to keep its lightness and volume within a few hours of shampooing. Greasy hair can seem lifeless, dull oily and lank. It can also appear heavy and flat, refusing to stay clean and fresh. Is this describing your hair? Ever ask yourself "why is my hair greasy?" Others may judge people with greasy hair as having poor hygiene and that they do not wash their hair very often, even if the sufferer washes it every day.

The grease in hair grease is oil and is called Sebum. Sebum is produced by the sebaceous glands which lie immediately under the skin in you scalp and each hair has a sebaceous gland. Greasy hair is in fact healthy hair, and the oil protects each hair strand from dryness and split ends. Sebum lubricates hair skin and provides a protective barrier to prevent drying. This oil is your own built-in moisturizer.

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 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 are also many internal causes of greasy too. I have already mentioned fluctuating hormone levels, but one of the main culprits when it comes to internal causes of greasy hair is diet. Western diets that tend to be greasy, high in fat and sugar, processed and containing additives which can be a major cause of greasy hair as the high fat content increases oil levels in and on the skin. Hormones can be found in meat in the western, adding to the unbalanced hormone levels. A diet lacking in vitamin B can also contribute towards greasy hair.

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 the best results, the longer you leave the shampoo in, the better. If necessary, rinse your hair and shampoo again. The question of how often to wash your hair is as unique as the individual. The ideal frequency is 1-2 times per week, but to find your own balance start with washing everyday then reduce that to find a good balance of washing and oil production. If you use a hairdryer when styling your hair don't let it get too hot as heat will stimulate more oil production. When it comes to conditioning your hair, again use a conditioner designed for greasy hair. Apply conditioner to the mid and ends of your hair, but not the roots.

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.

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