iS Clinical C Eye Serum Advance+ is a high-performance vitamin C eye serum formulated to visibly smooth, brighten, and protect the delicate under-eye area. Powered by a 7.5% concentration of ADVANCE+ L-ascorbic acid and tripeptide-1 (copper tripeptide-1), this cutting-edge formula helps reduce fine lines, crow’s feet, dark circles, and under-eye puffiness. Infused with hyaluronic acid for intense hydration and zinc sulfate for antioxidant photoprotection, it soothes and strengthens the skin barrier while improving tone and texture. This gentle yet potent eye serum delivers advanced anti-aging benefits and superior antioxidant defense for refreshed, youthful-looking eyes.