Soothing Face Mask When to use it? After a sunny day, during cold winters, after eating spicy food or drinking a little too much, when you're stuck in traffic, and finally as soon as the skin needs to be calmed down. Trésor Solaire is also ideal for urban skins that are often faced with pollution. What are the benefits? Soothes your skin when it becomes sensitive due to external aggressions, strengthens the skin barrier, helps the skin recover all its comfort, makes you want to look at yourself more often, boosts your self-esteem. What you won’t see anymore: Redness, feelings of discomfort, tightness, weakened skin.