EC1 Professional Hair Serum (often listed as EC1 Professional Shine Care Keratin Serum) is a high-performance hair treatment designed to provide an instant salon-like finish. Formulated with nourishing keratin, it focuses on repairing damaged strands, sealing split ends, and adding significant volume and shine to dull hair. Its lightweight, non-greasy formula makes it an ideal protective barrier against heat styling and environmental humidity.