Have you washed your hair today? Why is your hair still greasy even after washing it every day?

Do you have such troubles?

Not washing your hair for a day

It's greasy

Looks dirty

So why is this?

Is it harmful to your scalp if you wash your hair every day?

Why is hair so oily? In fact, many people have oily scalps because it is a normal part of the skin's function, just like the lungs exhale waste gas and the heart pumps blood. The scalp also needs oil protection.

Moreover, the scalp has a lot of sebaceous glands, the oil-producing "equipment".

Calculated per square centimeter, there are only 8 sebaceous glands on the limbs, while the density of sebaceous glands on the scalp is as high as 400-900, comparable to the subway during rush hour!

So even if our bodies are very dry in autumn and winter, our hair may become oily easily if we don’t wash it for a day.

Image source: Pixabay

What causes hair to become greasy?

Over-washing

Washing your hair can remove oil from your head, but excessive washing can easily damage your scalp. This will only wash away the oil at the time, and then it will affect the oil secretion. The hair will not be able to control oil and will become more and more greasy!

Often stay up late

Staying up late seems to have become the norm for people born in the 90s and 00s! But after staying up late, you will find that not only your face is greasy, but your hair will also be very greasy.

Because the human body does not get rest when staying up late, the scalp metabolism will be disordered, and the corresponding hair will be troubled by impurities and become oily.

Improper diet

You may have felt this deeply: after going out to eat hot pot or barbecue, not only will your body smell, but your hair will also be greasy.

Greasy and spicy foods are very irritating to the skin and will affect the skin's secretions. For the scalp, it will cause excessive oil production.

Misuse of hair care products

In daily life, it is inevitable to use some styling products such as hairspray and spray. Although these products will add points to your appearance, they will isolate your hair from the air and prevent your scalp from breathing, which will make your hair more greasy.

Too much pressure

The increasing pressure of life and study has a great impact on people's bodies. These pressures will constantly stimulate nerve endings, causing the sebaceous glands to over-secrete oil.

Image source: Pixabay

How often should you wash your hair?

Among the factors that affect the oiliness of the scalp, the frequency of washing hair is one of the important factors. Washing hair too frequently will increase oil secretion; washing hair too infrequently may affect hair quality.

How often should you wash your hair? This can be divided into the following two situations:

1. Hair type

People with oily hair can wash their hair once a day, but they don’t have to use shampoo every time and should use a hair dryer less often.

For those with normal or dry hair, the frequency can be adjusted to 3 to 4 times a week.

2. Whether to use styling products

For most people, if you don’t use styling products on a regular basis, there is no need to wash your hair every day. 2 to 3 times a week is enough.

If you use styling products, you can do it once a day, but girls must use conditioner or hair mask to strengthen the protection of their hair.

Whether you wash your hair every day or not, as long as you use the correct method, it will not only not damage your hair, but also effectively nourish your hair.

Will washing your hair every day cause hair loss?

Washing your hair every day will not cause hair loss.

The total number of human hair is more than 100,000, and the hair follicles on the scalp are replaced by new ones to maintain a dynamic balance of the total number of hair. As long as the number of hairs lost per day is within 100, it is considered normal.

Hair follicles can be divided into growth phase, regression phase, resting phase according to their growth cycle, and then fall out and start a new cycle. Some hair is already on the verge of falling out in the resting phase. Washing your hair will only make those hairs leave the scalp faster, and it will not cause hair loss.

This article is compiled from:

① If your hair becomes oily after not washing it for one day, it may be due to these 5 reasons (Tencent Medical Dictionary She Knows)

②Why does your hair become greasy if you don’t wash it for a day? Here’s the reason! (Sohu.com)

③Will washing your hair every day cause hair loss? (Dr. Dingxiang)

④ Is it good to wash your hair every day in summer? The answer from dermatologists is… (Life Times)

Source: Chongqing Tianji Network Co., Ltd.

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