La Prairie Cellular Swiss Ice Crystal Serum has the following features: This lightweight, age-delaying serum helps relieve signs of fatigue, including lines, dullness and dryness. The deeply-hydrating formula imparts a youthful-looking glow on your skin upon application, instantly smoothing, soothing and replenishing. Over time, your skin is brightened and more even with diminished wrinkles. Ice Crystal Complex provides anti-pollution protection, has anti-inflammatory benefits and boosts microcirculation to fortify skin barriers.