Our skin has a natural barrier that prevents it from losing too much moisture. This barrier is made up of corneocytes and
- a thin film of oils on the skin. This alleviates the harmful influence of water on
- structural lipids rich in linoleic acid that are located between the corneocytes and flexibly link them together
- natural moisturising factors that help to stabilise the skin’s moisture content
Together with the corneocytes, all these form a protective wall structure which leaves no opportunity for bacteria or other harmful substances to penetrate our skin.
If, however, the structural lipids and moisturising factors are stripped away by overly frequent bathing, showering or swimming or are no longer produced in sufficient amounts because of ageing or eczema, the corneocytes separate from one another, creating gaps in the skin’s protective barrier. Whether as a result of internal or external causes, the result is always the same – dry, flaky, rough skin that is susceptible to inflammation, itchiness and eczema.
To protect the skin against barrier breakdowns and the depletion of lipids and moisture, it is vital that the skin’s lipids and other essential components of healthy skin are constantly replenished. Linoleic acid is particularly significant in this respect. The body cannot produce this substance on its own – like vitamins, it must be taken in on a regular basis to maintain healthy skin.
It is directly provided to the skin by Linola Fett and medicated skin care products (e.g. Linola Lotion). For very dry skin and during the winter, a higher lipid level is recommended, while a lower level of 35% can be adequate in milder cases or during the summer.