L'Oreal Paris Elvive Glycolic + Gloss High Shine Leave-In Hair Serum transforms dull, porous hair into glossy, luminous locks. Infused with glycolic acid and shine-enhancing technology, this lightweight serum smooths the hair cuticle while delivering intense moisture and reflective shine. Perfect for all hair types seeking a polished, salon-quality finish without the weight. Simply apply to damp or dry hair, focusing on mid-lengths and ends. Experience visibly smoother, shinier hair with every use.