How often should you wash your hair-According to science

hair washing
How often should you wash your hair-

How often should you wash your hair a week, According to science?


Hair washing seems like an easy and straightforward thing. But if you ask at least five people how often should you wash your hair a week? They cannot answer this question properly in simple words. Perhaps all of them wash their hair at different frequencies - completely or partially, and may not even be sure that they should wash the hair more often or less typically.

Washing the hair too frequently may dry out our hair. Our scalp fabricates oil or sebum that keeps hair glossy, shiny and soft. If we wash our hair very often, we may prevent the natural oil of our scalp from reaching the length of the hair that keeps hair moisturized. Excessive washing can dry our hair easily and can cause breakage and thinning hair.  If someone dyes his hair then washing it daily can reduce color more quickly. Normally washing enough can cause hair issues such as greasy hair. but knowing how often should we wash our hair depends on the type of hair. Infrequent or occasional washing does not cause dandruff, as many people believe.

If you like styling hair products such as oils, creams, and gels, you should also love shampoos. But you must remember and be careful that some chemical cosmetics and hair products can harm your hair and may cause scalp irritation. Healthy hair based on the healthy scalp so scalp must be clean and soft. Do not use such soaps or shampoos that are not suitable for your scalp they can damage your hair or slow down hair growth.  


What is the problem with your hair?

Before determining the appropriate number of times to wash your hair, you should consider the problem of hair. Is it dry or wet? Is it fast flapping or falling? Although the hair contains a small amount of water, sometimes cannot tolerate the large exposure and cannot bear the huge risk of water, so here we do not recommend you to wash your hair every day if your hair is tense, strained, dyed or white. It is better for you to reduce the number of times to wash in this situation. However, normal hair can be washed every day.


What are the different hair types?

Hair type is a big factor in the number of times washed, for example, the soft hair loses its vitality and intensity after a day or two of washing, and the hair curly can stay in good condition longer between the washing, the soft hair needs to use shampoo more than others. So how often we should wash our hair depends a lot on our hair porosity, hair type, hair consistency, what quantity of dirt is in our hair, and other factors, thus let's break down the various types of hair.

Straight Hair

Straight hair, type-1hair falls straight from the root to the tip of the hair. It does not have any subtypes. Typically, people have totally different curl pattern varieties on their head, however, so we may have mostly straight hair with some type 2 hair mixed in.

Wavy Hair

Type 2 hair or wavy hair falls in loose waves somewhere in between curly hair and straight hair. Wavy hair is usually straighter close to the scalp, with waves and curls beginning close to the ears and taking place the length of the hair. Type 2a waves are loose, disheveled and tousled with hair usually fine, bright and thin. Type 2b has a lot of texture than 2a with outlined properties, however loose S-shaped waves. Type 2c is the most outlined wavy hair, with waves beginning at the roots.

Curly Hair

Curly hair additionally has 3 subtypes: 3a, 3b, and 3c. Type 3a is considered the loosest curl, although still quite outlined. Type 3b has a lot of thickness and density than 3a. Type 3c is the most tightly wrapped up of curly hair and is usually known as a corkscrew-shaped curl.

Kinky Hair

Kinky hair or afro-textured hair grows in three totally different subtypes: 4a, 4b, and 4c. Type 4a has an associate formed or S-shaped coil that is the loosest among these kinky hair varieties. Type 4b includes a Z-shaped coil and is slightly more tightly curled up, whereas kind 4c is the tightest coil and shrinks seventy to seventy-five percent. Kinky hair, notably 4c hair, is the most breakable and brittle.

How many times you should wash hair in a week?

How often you should wash your hair depends on your hair length, texture, and private preference. What happens if you wash your hair daily? Well, it depends on your hair. Some people feel a requirement to scrub daily, whereas, in some cultures, people with curly and kinky hair wash less often to safeguard their hair against breakage. Although there's not a particular science to work out what percentage times per week you should wash your hair with a light protein-rich shampoo daily or choose any type of daily care shampoos. There are some general pointers and guidelines that may assist you to decide.

If you have oily hair

The more you have the oily hair, the more often you should wash your hair. This can mean that you should wash it daily or even more often, like within the morning and after physical exertion and exercises.

If you have straight hair

Straight and fine hair usually needs washing every one to three days. However, if you have oily hair, although your hair is straight and thin, you can wash it more often.

If you have an afro or kinky hair

Wash your hair once a week, or every other week because your hair and scalp are dry and more delicate. The physicians of The American Academy of Dermatology recommend folks with afro hair, use a hot oil treatment once a month to help keep hair wet, elastic and physically strong.

If you have an artificial or dyed Hair

Washing every 2 to 3 days can help keep color better and facilitate your hair retain its natural wet and moisture. It is best to scrub an artificial and dyed hair less often since the chemicals dry out the hair and strip the cuticles.


If you have coarse and thick hair

If you have got thick or coarse hair, it is better to leave at least one day between washing — otherwise, you are also ready to go even longer. You know your hair higher and better than anyone else; therefore do what is best given your type of hair and whether it tends to be dry or oily.

If you have curly hair


Depending on how oily and thick your curls are, you can usually wash once every three days. Typically curly hair is frizzy so you can use shampoo less often than people with straight, wavy, or oily hair. Take into account co-washing between shampoos.

If you have short hair


Some women with shorter hair need shampoo only in two to three days, but it can vary depending on the type of hair so there may be other factors in your consideration and thoughts.

If you exercise frequently

It is not beneficial to wash your hair after every physical exertion since doing so may injure or damage your hair unless you are employed up an important sweat or your hair is especially oily. If you wish to scrub your hair after every workout or physical activities, simply ensure you to use a conditioning shampoo or other moisturizing conditioners.

If you are a Guy

How typically ought to men wash their hair? As men’s hair is generally shorter than women, they will wash their hair less often, like once every 2 or 3 days. Men with longer hair can follow the above rules and guidelines.


What shampoo should you use?

It is possible to use shampoo every day if it contains nice ingredients and good materials for hair, but the proportion of sulfates is responsible for the work of shampoo foam, and this is also responsible for dry hair and scalp irritation, so we try to avoid shampoos that contain this type of substances especially with dyed hair, It is also recommended to buy products containing plant moisturizing ingredients such as soybean oil, coconut, and shea butter.


The first class or admirable shampoo depends on your hair type and other specific requirements. People with artificial or dyed hair might want to use a shampoo that helps retain color, whereas people with processed hair may have a moisturizing shampoo. Below are a couple of tips for choosing the simplest type and selecting the best shampoo for your requirements.

Read More: Castor oil for skin and hair growth: 

What is the best shampoo for hair?


·      Clarifying shampoos may help reduce the accumulation of oil and hair products. Naturally, clarifying shampoos contain beneficial ingredients like chamomile, aloe vera, and tea tree oil to assist cut back the oil on your scalp.

·      Volumizing shampoos may help straight and thin hair to appear thicker. This type of shampoos do not contain any ingredients that can add volume but they cleanse the scalp and hair without leaving behind any remains which can reduce the weight of the hair, therefore, volumizing shampoos usually contain similar ingredients and corresponding materials as clarifying shampoos.

·      Moisturizing shampoos can help stop crape, prevent frizz and keep hair healthy and fresh. Naturally moisturizing shampoos contain many useful ingredients like buriti fruit oil, coconut oil, and shea butter.

·      Organic dry shampoo soaks up oil, permitting you to clean less typically. you may still wash your hair. To use organic dry shampoo, sprinkle or spray it on two-inch segments of hair, which can have a minimum six inches from your scalp. Choose an organic dry shampoo in which there are no toxic substances.

·      If you have got a scalp condition like psoriasis, dandruff, seborrheic dermatitis, or your scalp is solely dry and flaky, use a shampoo designed to help an itchy and restless scalp.

·      Your scalp may absorb the chemicals in shampoos, thus I like to recommend you simply use organic and non-toxic shampoos that contain natural minerals, flavored extracts, and oils to cleanse and nourish the hair and scalp.

Tips for hair washing

Many people believe that washing hair on a daily basis loses the oils that are present in it, and it hurts scalp the most. This is true, but if you are a fat woman and have long hair, you should wash your hair daily. This is because you have too many oils in your hair which should be constantly washed so that hair follicles can be blocked, but try to wash it with natural shampoo so that your hair can be cleaned properly with chemicals. Women who have artificial or dyed hair should wash it twice a week so that they cannot cope with any hair problem.

If you are a normal hair warmer, you should avoid washing it every day so that you can take advantage of the secretions of the oils that are produced by the scalp, so the normal rate of washing is two to three times a week, because the accumulation of secretions more than normal can cause hair damage. Often we hear about the damage of washing hair more than twice a week because it loses hair vitality and makes it dry and thus leads to hair loss and degradation.

People with normal or dry skin can wash their hair day after day. Even if they wash their hair twice a week, then there is no problem because the bigger problem is with the oily skin. If you ignore the washing of hair every day, then oil and bacteria will be formed on your scalp. A clean scalp is important for healthy hair growth so you can use regular shampoo a few days a week and dry shampoo products that get rid of oils and clean the scalp in the rest of the week.

Our hair is subjected to a constant blockage and continuous resistance to chemical elements, and over time we find more things that may be harmful and detrimental to it. Pollution has been a problem for a long time, and today we have other things like air conditioning and central heating which can dry hair, and the water we use may also have an effect.. If water is hard, the chemicals added to it will be damaged, then they will dry hair, but the worst scenario here is that these materials will change color. Hard water has been blamed for long-term damage to the hair, because it usually causes hair to dry and makes it look like hay, and it will make the ends of the hair too thin to treat.

If you are on holidays in the area where the difference in hard water will be seen but at least you can go home and determine the origin of the problem, but it is an endless problem for people living in that area.

Conclusion
This is a frequently asked question that concerns many people, especially women, about how often to wash hair a week. In this article, we have tried to answer of this type of questions and discussed some hair products and hair tips which revolve around the type of hair, thinning hair, person's preference for hygiene, the shampoo function, and the best shampoo for hair.


By: Mahtab Alam Quddusi
How often should you wash your hair-According to science How often should you wash your hair-According to science Reviewed by The Scientific World on November 20, 2018 Rating: 5

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