Karine Joncas Youth Activating Serum provides a comprehensive solution to address the first signs of aging with 72-hour hydration. This 4-in-1 serum for day, night, eye contour, and neck acts as a daily defense against environmental stressors and the visible effects of stress, such as fine lines. Formulated with 99% natural origin ingredients, including collagen and 4D hyaluronic acid, it works to leave skin looking plump, toned, and radiant. The hypoallergenic, fragrance-free formula is suitable for all skin types, providing a powerful plumping and quenching effect.