An advanced vitamin c-15 serum contains 15% stabilized l-ascorbic acid. reduces the appearance of fine lines and wrinkle, age spots and sagging skin, improves tone and elasticity for a more youthful texture. for all skin types. smoothes out features, softens fine lines improving skin texture and refines facial contours effectively minimizes the appearance of fine line enhances skin s youthful appearance in within a weekmethod of useapply 4-5 drops to cleansed face and neck. avoid direct contact with eyes. follow with appropriate moisturizer if needed. use morning and/or evening. use spf 15 or greater sunscreen to prevent any increase in sun sensitivity. tighten cap securely following each use. store in cool, dark place.