Shelf life: 12 months after opening. In case of individual sensitivity to the components of the product, an allergic reaction may occur. How to use: apply one drop of serum on a cleansed face and skin around eyes with light massage movements until fully absorbed into skin. Next, it is recommended to apply oil or cream in order to retain moisture on skin. It is suitable for all skin types, in particular dry and sensitive. Recommended age: 15 y.o. and above. Storage: keep at a room temperature, avoiding direct sunlight.