What it is: An award-winning serum that future-proofs skin to combat early signs of aging. What it does: Formulated with surgical precision by Dr. Yannis Alexandrides and powered by 111SKIN's proprietary NAC Y2 complex, this antioxidant-rich serum delivers actives deep into the epidermis to plump, smooth and restore healthy skin in two weeks. Upon application, the cooling, velvety texture absorbs effortlessly into skin, leaving it feeling immediately nourished, softer and more hydrated. Over time, the restorative effects of the serum reduce redness, rebuilds and reinforces the skin barrier and accelerates cellular repair by boosting glutathione-the body's master antioxidant.Key ingredients:- NAC Y2: a trio of actives with superior antioxidant capabilities that harness the power of glutathione, vitamin C and escin to boost the body's natural ability to repair its cells at the deepest level- Escin: an active compound that naturally boosts the body's ability to calm inflammation, found in the form of horse chestnut extract, and known for assisting in the reduction of dark spots, rosacea- Pink rock rose extract: anti-inflammatory and smoothing, it reduces the appearance of fine lines- Niacinamide: brightens and evens skin tone and rebalances pigmentation- Centella asiatica: a potent antioxidant known to condition and fortify the skin barrier and support collagen production- calendula officinalis: harnessed for its soothing powers on sensitive and irritated skin, it helps reduce transepidermal water loss for hydrated, plump skinHow to use: After cleansing, distribute 1-2 pumps between the fingertips and apply to the face and neck in an upward motion every morning and evening before using the Day Cream (sold separately). Paraben-free