04 Nov, 2008
Causes of greasy hair, and best products/shampoo for greasy hair
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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.
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 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.
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.
