To begin using your Dior Forever Matte Foundation, ensure your skin is clean and moisturized. For best results with a matte foundation, consider a hydrating primer if you have normal to dry skin, or a mattifying primer if you have oily skin. This foundation is broadly compatible with most skin types, particularly excelling on oily, combination, and normal skin due to its shine-controlling matte finish. Those with dry skin can still benefit from its skincare base, but proper moisturizing and primer application are crucial to prevent any potential emphasis on dry areas. Store the foundation in a cool, dry place away from direct sunlight to maintain its consistency and efficacy. Always secure the cap tightly after each use to prevent drying and contamination. To ensure hygienic application, regularly clean your foundation brushes or sponges.