How Often Should You Wash Your Hair in a Week According to Science?

According to science, if your skin or hair is normal, you may only need to wash it once or twice a week and If you have an oily scalp, you may need to wash your hair more often.

Hair should be washed at least once per week, and it is preferable to wash hair three times per week, with the use of a good shampoo type that suits the quality of hair, as bad shampoo causes trouble and problematic hair. If the scalp is oily, the hair is washed three times a week, and if it is not oily, it is recommended to wash it twice a week. 

How often should you wash your hair in a week according to science?

How Often Should You Wash Your Hair in a Week According to Science?

How Many Times Should You Wash Your 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 type. 
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. 

It is also necessary to take care of the cleanliness of hair periodically, as most cases of hair loss in women are caused by a lack of attention to hygiene, which causes various diseases affecting the scalp. 

It is advised not to neglect the hair or wash it a few times less than recommended, as the fats begin to break down into fatty acids after three days of washing the hair, which leads to split ends. 
It is also advised to avoid washing hair with soap and replace it with shampoo.

What Happens if You Wash Your Hair Everyday?

If you wash your hair every day, then you are meeting the need to wash your hair more often and are accelerating a feedback cycle, depending on your body, skin type, etc.

Hair washing daily can remove healthy oils to some extent, but a too-oily scalp may feed fungus that can cause seborrhea.
If you wash your hair daily, your body will produce a large amount of oil to make up oil stripping, in an effort to maintain homeostasis.  If you do workouts daily or your scalp is naturally oily, then hair washing once daily can be beneficial for you.

Depending on the nature of the scalp, it is advised to wash hair using a shampoo two or three times a week for women who cover the head.
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 have 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.

How to Wash Your Hair the Right Way

Here are some tips to follow when washing hair, including:

➤Choose the appropriate shampoo and conditioner for the type of hair, if the hair is dry, it is preferable to choose deep moisturizing lotions, and if the hair is dyed, it is preferable to choose the shampoo for dyeing, and so on.
➤Determine the number of times to wash hair by hair type.
➤Avoid using unfiltered water to wash the hair, because it causes dry hair and makes it dull while making sure to use mineral-free water.
➤Wash hair thoroughly with warm water, as warm water will open the hair follicles.
➤Apply conditioner to the hair, especially the ends, and massage it well.
➤Apply a little shampoo to the palm of the hands, then rub the hair between them well.
➤Massage the hair using shampoo in a gentle manner and focus on the roots of the hair at the scalp, taking care not to place a large amount of shampoo on the ends of the hair, as it is exposed to drying more than the roots of the hair.
➤Wash the hair with warm water, making sure to shampoo thoroughly with fingers.
➤Apply conditioner to the hair, especially if the hair is long.