Supercharge your anti-aging skincare routine with Kiehl's Powerful-Strength Line-Reducing Concentrate. Formulated with a potent 12.5% Vitamin C—combining 10.5% Pure Vitamin C (L-Ascorbic Acid) and 2% Vitamin Cg—alongside moisture-plumping Hyaluronic Acid, this fast-absorbing serum penetrates deeply to visibly transform your skin. Clinically demonstrated to decrease the appearance of fine lines, deep wrinkles, and crow's feet, it works effectively to boost overall radiance and refine skin texture. With daily use, this dermatologist-tested formula helps firm the skin matrix, providing a smoother, brighter, and undeniably more youthful complexion.