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 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.

Fluctuating hormones can cause greasy as hormones play a part in sebum production. Greasy hair is most common in women because of either pregnancy or monthly cycle, older women going through the menopause, and teenagers experiencing puberty. Stress can be a contributory factor in greasy hair as it is known to affect hormones levels. People with fine hair on their head may experience excessive greasy hair as they have more hair follicles and more sebaceous glands producing more 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 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.

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.