Kiehl's Powerful-Strength Line-Reducing Concentrate is a high-performance serum designed to visibly reduce the appearance of fine lines and wrinkles while improving skin texture and radiance. Formulated with 10.5% L-Ascorbic Acid (Pure Vitamin C) and a renewable 2% Vitamin Cg (Ascorbyl Glucoside), this patented water-free concentrate delivers potent antioxidant benefits to the skin's surface layers. Combined with Hyaluronic Acid, it helps hydrate, plump, and smooth the skin, while supporting a firmer, more youthful appearance. This lightweight, fast-absorbing serum is suitable for all skin types, including sensitive skin, making it an essential step in daily skincare routines. The formula's Pure Vitamin C penetrates deeply into the skin to target visible signs of aging, while Vitamin Cg activates upon absorption to provide additional antioxidant support and reduce the appearance of facial lines over time. Hyaluronic Acid, in its fragmented form, acts like a sponge to draw moisture into the skin's surface layers, helping to plump and smooth the texture. Together, these ingredients work to minimize the appearance of pores, even skin tone, and deliver a radiant, healthy-looking complexion. Designed for morning and night use, the serum is applied after cleansing and toning but before moisturizer. A small amount is gently massaged into the face, avoiding the eye area. As the formula blends in, a slight warming sensation may be felt, which indicates the activation of the Vitamin C complex. Regular use consistently improves the look and feel of the skin, delivering visible results in as little as two weeks.