In order to measure the degree of acidity and basicity of an environment or an aqueous solution, we use a scale well known in the world, the PH.

In marine cosmetics, we focus on the PH of the skin of the face, which is essential to know in order to better understand the nature of our skin and thus, to adjust your beauty routine and to buy suitable products, in line with this PH so important.

What is skin pH, and how do you measure it?

The pH of the skin is, as we indicated above, the means of measuring the degree of acidity of our skin. This is decisive for the nature of the latter, in order to know if you have oily, dry or combination skin. To be able to rebalance the body’s pH.

And to better understand the appearance of eczema or dermatitis often caused by an imbalance of the natural flora of our skin.

The ideal pH for healthy skin is around 5.5 although this is not a benchmark because depending on an individual’s age, gender and activity, this will vary slightly from person to person. The skin of a newborn baby is 7, but this will tend towards a slight acidity (6 then 5.5) in order to protect the skin from bacteria and external aggressions. Acne-prone skin will have a much more alkaline PH. It is therefore thanks to this scale that we can determine possible skin problems and thus better treat them.

It is not easy to accurately determine the pH of the skin to the nearest comma, there is a technique that will help you determine this easily, in just a few minutes, at home.

The tissue paper technique:

To easily find your skin type and your closest PH, you will need some tissue paper.

You can also use a tissue, but it will be more difficult to determine your skin type because these are often too thick and absorb much more than just tissue paper.

If you really can’t find tissue paper, I recommend that you split your handkerchief so that you only get one of the three layers that make it up.

Then, remove your makeup and / or cleanse your face conscientiously in order to remove all impurities and traces of pollution that could alter the result of the small test.

Finally, simply pass the sheet of silk or the handkerchief over your face. You will apply one to your T-zone that is, your nose, chin and forehead, and two more small ones to your cheeks. These will absorb the sebum as well as the hydrolipidic film present on your skin 30 minutes after washing your face.

Inspect the handkerchief or silk sheet and these are the results:

  • All the tissue papers that you have placed on your face have marks: The pH of your skin is alkaline, that is to say it is greater than 6. You have oily skin, perhaps even with problems such as enlarged pores, pimples, blackheads, acne …
  • The paper on the T zone has spots but the others are clean: You have a normal pH for the skin which is around 5.5. You have perfectly normal skin that is not oily and has no problems.
  • All the papers are clean: You have a fairly acidic PH which is around 4.5, which means you have dry skin. You feel some tightness after washing yourself.


After knowing the nature of your skin, it is imperative to choose your cosmetic products well. At the moment, the big fashion is for marine cosmetics, based on seaweed from Brittany. Containing little, if at all, chemicals, these are ideal for gently caring for your skin with a neutral pH and regaining remarkable comfort, while saying goodbye to skin problems that can make our life hard.

Quelques liens :

The benefits of seawater
Sea water is made up of minerals like magnesium, calcium and potassium.

The benefits of marine cosmetics
Marine cosmetics provide many benefits such as hydrating the skin, detoxifying and protecting the skin.

The impact of GMOs on the skin
The skin is very sensitive to GMOs and preservatives. Discover in this article all these harmful elements that we can meet.

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