The Cerita Hair Strengthening Serum, Keratin Model, with a volume of 120 ml, is a unique product. This serum, with a combination of nutrients and vitamins, helps strengthen the hair and adds shine and softness. Its formulation contains keratin, an important protein for hair health, which helps keep the hair strong and healthy. With continuous use, the hair becomes softer and more delicate, and its fibers are protected. This serum creates a protective layer on the hair, shielding it from environmental damage and keeping it healthy and strong. It helps improve the condition of damaged hair and strengthens and repairs weak and damaged hair with its nourishing and strengthening ingredients.