Vichy Mineral 89 Fortifying and Plumping Daily Booster - 50ml Mineral 89 works to strengthen the skin barrier to protect it from daily external aggressions such as pollution and stress. Day after day, your skin is hydrated, firmed, and strengthened. Mineral 89 is the ideal first step for all skin types. Spread it on cleansed skin before applying your day cream. Skin type: All skin types. When to use: Morning. Benefits: Strengthens, hydrates, and plumps the skin.