Rosacea is a visible symptom linked to abnormal and persistent dilation of the small blood vessels in the face, known as telangiectasias. It manifests as fine red or purple vessels, particularly visible on the cheeks, sides of the nose, and sometimes the chin or forehead. This phenomenon occurs most often in people with fair skin, generally between the ages of 40 and 50, and mainly affects women.
Rosacea is often part of a broader context of reactive skin or skin prone to redness, such as rosacea. It can follow transient redness (flushing), sensations of heat, tingling, or discomfort. Over time, this redness becomes persistent, and the dilated vessels become more clearly visible. Couperose is therefore a visible sign of vascular fragility, which requires appropriate care to strengthen the skin barrier and maintain daily skin comfort.







