WHAT MAKES THE PH VARY?
The skin is shown to be one of the most important vital organs for human well-being. Thus in its proper functioning and to fully ensure the various vital functions that shine its assigned, the skin needs balance and the maintenance of its basic condition. One of the elements that play an important role in the proper functioning of the skin is pH.
In fact, the hydrogen potential (pH) is a measurement which makes it possible to account for the state of an aqueous solution (acidic, basic, neutral). The pH measures the level of presence of hydrogen ions, that is to say their activity. The body is made up of 70% water, and the epidermis is one of the layers of the skin, made up of a suspension of water and lipid. Measuring the pH of the skin amounts to measuring its condition in relation to the activity of hydrogen ions in the epidermis.
Where does the change in pH come from?
The pH is not constant and can vary under different conditions and under different factors. Assuming that the neutral pH of an aqueous solution whose solvent is water at 25 ° C and at a fixed pressure is 7, the following elements can vary the pH:
• Temperature : neutral pH changes inversely with increasing temperature;
• Acidity and Alkalinity : Acidity decreases neutral pH while alkalinity increases pH above 7;
• The solvent : the neutral pH is not the same when using different solvents and depends mainly on the properties of the solvent. Unlike water, the neutral pH of acetonitrile is 27;
• Age : pH ranges from neutral to alkaline depending on whether it is infants or adolescents;
• Nutrition : Eating too much meat or sugar can increase the acidity of the skin’s pH. Deionized water can also upset the pH balance of the skin;
• State of health : certain diseases can increase or decrease the pH of the skin;
• Gender : the pH in men is a little more acidic than in women;
• Location : the pH varies depending on the part of the body concerned, because the epidermis of the thighs is different from that of the face, stomach etc.
Why is it important for the skin to be slightly acidic?
In view of all these variations, why is it important that the pH of the skin is slightly acidic?
In fact, the pH of normal skin is estimated at around 6, lightly acidic. That is, the pH favorable to the skin for expressing its full potential is a weakly acidic pH. This pH really allows the hydrolipidic film in the epidermis to effectively ensure its natural defense function against external attacks (bacteria, viruses, etc.), through the synthesis of skin lipids, the development of the flora. bacterial naturally protecting against skin infections.
The importance of using quality cosmetics to rebalance the skin’s pH
Considering the importance of the pH for the well-being of the skin, it is therefore important to favor in its range of cosmetic products, those which respect the pH balance of the skin and which make it possible to rebalance the pH of the skin. skin. In addition, in the benefits of the use of these products, would strengthen our skin defense and avoid certain skin problems and certain diseases such as: heart problems, acne, pimples, cancers etc.
In view of all of the above it is obvious that the skin is our armor against microbial attacks, hence the need to use cosmetic products from seawater which do not disturb the pH of the skin, we thus leaving it vulnerable to external attacks.
Some links :
Seaweed from the Iroise Sea
The cosmetic properties of algae: purifying, moisturizing, nourishing, toning.
Why it is important to hydrate your skin
Moisturizing your skin will help remove all the harmful substances that will accumulate throughout the body
The impact of GMOs on our skin
GMOs and preservatives have a negative impact on our skin: Parabens or parabens, triclosan, cetrimomium bromide, methylisothiazolinone, formaldehyde, phenoxyethanol.
When our skin is irritated, what should we do? What are the practical tips for preventing skin irritation?