What is the skin's lipid barrier?

On its surface, the skin has a hydrolipidic film (or lipid barrier), a balanced mixture of a watery phase and a lipidic phase. The first is mainly made up of sweat, which allows the skin to fix its acidic pH. The second is mainly composed of sebum, which allows the skin to retain its water, thus preserving its hydration and suppleness. The major function of the lipid barrier is to protect the skin from external aggressions and bacteria.

The homogeneity between the acidity and the proportion of lipids depends on several factors such as age, stress, or the seasons. The alteration of the lipid barrier can manifest itself by a skin that is tight, itchy, red, etc.

Our ingredients to preserve or restore the skin's lipid barrier

Skin lacking in water and lipids will be dry, and therefore more sensitive to external aggressions, which can lead to flaking or eczema. In order to keep a comfortable and aesthetic skin, it is therefore important to preserve its lipid barrier.

Derived from squalene, a lipid produced by our body, squalane helps prevent insensible water loss. Our plant-based squalane ingredients are particularly suited to restoring the skin’s lipid barrier. With its strong moisturising properties, squalane is ideal for the formulation of creams or serums for dry, mature skin. Its non-greasy feel brings smoothness to facial care formulas. Squalane is also suitable for the composition of dry or massage oils for body care formulations.

Our Biophytosebum ingredient is a natural active emollient derived from the olive. It is known for its actions in restoring the lipid barrier, preventing insensible water loss, and moisturising. Ideal for the composition of rich formulas, it deeply hydrates and repairs the skin. With its exceptional sensoriality, it allows the development of silky textures with a non-greasy feel. In addition, this emollient is a natural alternative to silicones, which makes it possible to offer more environmentally friendly formulas.