Contains marine fennel extract, provides instant hydration & helps reduce the appearance of wrinkles. Inspired by the power of the ocean, this Olay serum, containing marine fennel extract, provides you with instant hydration & helps you reduce the appearance of wrinkles. Is Instant Hydration Anti-Ageing Serum right for me? Instant Hydration anti-ageing serum, with marine fennel extract, penetrates into the skin surface to enhance the hydration benefit from your moisturizer while visibly helping to smooth out the appearance of fine lines & wrinkles. For fresh, silky smooth, beautiful looking skin. Results With daily use, your skin will look noticeably fresher, smoother & brighter & the appearance of fine lines & wrinkles will be reduced.