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What you need to know about the hydrolipidic film?

film hydrolipidique.jpg

The hydrolipidic film is an essential element for our skin, to protect it. Here are my tips for taking good care of your hydrolipidic film.

If you are used to reading my articles, I often talk about the hydrolipidic film, especially when I deal with a subject that concerns people with sensitive skin. The hydrolipidic film is an essential element for our skin because it acts as a shield, as a protective barrier against external aggressions.


Here is everything you need to know about the hydrolipidic film.

What is the hydrolipidic film?

The hydrolipidic film appears on the surface of the skin. It is a film that consists of the following elements:

  • sebum, which will allow the skin to stay hydrated by preventing it from losing its water.

  • sweat. It affects everyone because naturally, to regulate itself, the skin produces sweat which is not perceptible. So I'm not talking about perspiration here. The purpose of sweat is to maintain the acidity of the skin (which will prevent the development of microbes for example). Small point in relation to acidity: the natural pH of the skin is 5.5, a pH that must be maintained. Thus, it is strongly advised not to apply neutral pH products to your skin. If you don't maintain the acidity of the skin, you will make your skin easier to access to external microbes.

  • residues from keratynocites. You should know that our skin renews itself every 28 days on average. Hence the presence of dead cells on the skin, regardless of the part of the body. It is therefore important to exfoliate regularly, especially a facial exfoliation , to remove these dead cells and prevent them from becoming embedded in the pores. This causes the appearance of blackheads and pimples.

  • cholesterol, in fact we have cholesterol on the surface of our skin linked to the process of keratinization of our cells.


The composition of the hydrolipidic film varies according to the individuals: some will have less sebum than others for example, which will have the consequence of having a hydrolipidic film lighter than the others, less powerful in the face of external aggressions. We will then say that these people have sensitive skin. This is the reason why they have redness for example as soon as it gets colder or when they apply certain products.

What is the hydrolipidic film used for?

The hydrolipidic film acts as a barrier that will protect the skin against external aggressions. The external aggressions are as follows:

  • the cold and in particular the dryness of the skin associated with the cold.

  • the heat

  • water which will dehydrate the skin, drying quickly in the open air. This is called osmosis. It is thus always necessary to dry the skin and not to leave droplets.

  • UV, but this is not enough to fight against all UV. It is therefore necessary to apply a natural sunscreen.

  • Pollution

  • dust

  • the microbes

  • toxins

  • products we apply to the skin that contain chemical or petrochemical ingredients. This is the reason why it is strongly advised to apply natural products.


You should also know that the hydrolipidic film gives an odor to the skin, a personal odor. This is the smell that sniffer dogs can smell.

How to strengthen its hydrolipidic film?

As you have understood, the hydrolipidic film is an essential element for our skin that it is necessary to protect, even to reinforce in people with sensitive skin. Thus, it is recommended:

  • to use only natural products. Avoid applying products that contain chemicals and petrochemicals to your skin. Switching to natural products is not just a fad, but a real benefit for your skin and your hydrolipidic film.

  • moisturize your skin every day, whatever your skin type . I remind you that even people with oily skin must moisturize their skin, using a suitable product.

  • deep cleanse your skin, including a facial scrub or mask, to remove dead skin cells that clog pores.

  • if possible, avoid washing your face with tap water, which has a pH close to 7, which is stronger than the natural pH of your skin. Tap water attacks your skin. On the other hand, you could cleanse your face with thermal water or floral water.

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