Sensitive skin is characterised by an altered skin barrier and a lower tolerance threshold. The epidermis becomes thinner, and insensible water loss and skin permeability increase.
The refined epidermis induces hyper-stimulation of over-exposed nerve fibres. The skin over-reacts to its environment.
The increase in skin permeability to irritants leads to an exacerbated inflammatory reaction, with tingling sensations, overheating and hyper-reactivity.
Finally, the skin microbiome is out of balance. Beneficial skin bacteria, which help maintain skin integrity, are reduced in favour of pro-inflammatory bacteria, which amplify inflammation and weaken the epidermal barrier.

To remedy this, Thalgo has created the Cica Marin line, comprising four facial treatments all formulated with marine prebiotics: Soothing Cream (50 ml refillable pebble jar, €52), Soothing Fluid (50 ml, €52), Soothing Anti-Redness Serum (30 ml, €55) and Soothing Repair Mask (50 ml, €38).
Thalgo’s innovation? To have identified a red macro-alga, Halymenia durvillei, recognised as one of the richest in polysaccharides, whose green extraction produces an extract with a high oligosaccharide content. These marine prebiotics have beneficial, rebalancing effects on the skin’s microbiome, boosting the skin’s resistance and fortifying it. They repair the weakened skin barrier by increasing the thickness of the epidermis. Their soothing action is …