Cutin 1 mg is a nutritional supplement containing Biotin, also known as Vitamin B7 or Vitamin H. Biotin is a water-soluble B-vitamin essential for various metabolic processes, including fatty acid synthesis, amino acid catabolism, and gluconeogenesis. It plays a crucial role in maintaining healthy hair, skin, and nails by influencing the growth and differentiation of epidermal cells. Biotin functions as a coenzyme for mitochondrial carboxylases in hair roots, enhancing keratin structure. Deficiency in Biotin may lead to hair loss, brittle nails, dermatitis, and other systemic symptoms.