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How to prevent hair from being greasy

  • Oily scalp: causes, solutions, shampoos and treatments
  • Scalp masks: why you should use them

    The myths around what to do to maintain hygiene in the hair They multiplied out of control. It is now almost impossible to distinguish between claims that have a scientific basis and those that are just assumptions that have been repeated so much that they have become seemingly believable lies.

    The absolute truth to start with is that the natural sebum secreted by the scalp is a symptom of strong and healthy hair. But aesthetics dictate that the minimal visibility of these oils means poor hygiene, so as soon as we detect them, we proceed to eliminate them.

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    If you wash your hair too often, you rob it of its protection, to which the scalp responds by producing more. It’s an endless cycle. And to find the answer, we asked María Roberts, founder of beauty salon Studio25, the million dollar question: How often should you wash your hair? “From my point of view, at the request of each hair, and also depending on the time, not all behave the same. Our way of life also comes into play.”

    A popular explanation, on which the idea that the oil production of the hair can be driven, is based, is that each time we wash the hair, we remove these oils and that is when the production process begins again in scalp. So that it is concluded that the more we wash the hair, the more sebum it will produce. The expert does not agree with this statement: “I don’t think it’s like that, the hair should be washed on demand. For me, it’s essential that it’s clean and shiny”. And it seems the science backs up his view.

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    Both the expert consulted and the scientific studies confirm that the production of fat in the hair is strongly determined by hormones and their own levels. This leaves very little room for action on the frequency of washing to determine the amount of oil produced by the sebaceous glands. And it is that we must not forget that the application of shampoo and other cosmetic products, such as conditioners, affects the sebum already produced, and not the way in which it is produced inside the hair follicles .

    So, Mary Roberts sees no point in any of the latest tendencies from tiktok who recommends alternating shampoos with shampoo and without shampoo so that this product does not affect the production of sebum: “Honestly, I prefer a shampoo to nothing”, categorically affirms the hairdresser.

    less greasy hair

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    All of this clarifies the situation and helps us to understand that unless we have the ability to intervene in what is happening inside the scalp, it would be very difficult to change the cycle of oil production. So why do some people say they see a difference when they change shampoos or limit washes? This could be due to the so-called confirmation bias. That is, people who aim to make their hair less greasy, they might watch you more closely than before and might interpret any normal pattern as something more positive and justify it with your new routine.

    Less oily hair

    What’s the point reducing the greasy appearance of our hair is something much simpler: dry shampoo. It’s a cosmetic that sprays on the roots when they start to get heavy from the accumulation of fat and can allow us to space out the washes for another day: “I love it, I find it super comfortable and super effective “, explains the hairdresser. In this way we will achieve our goal, without being misled and without the hair or the scalp suffering sudden changes. And if you are not convinced, you will always have to try one of these hairstyles when you don’t have to wash your hair.

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