Very dry, overly hard, or brittle nails often result from exposure to external factors (such as the use of harsh chemicals, frequent work in contact with water, overexposure to the sun, etc.) but also from internal factors (age, diet, hereditary factors, etc.). MAVA-FLEX is a balanced concentrate based on urea, saccharides and hyaluronic acid, calcium, lemon extract, and vitamin B5. It ensures optimal nail hydration, restoring and maintaining nail flexibility. It strengthens the structure of brittle or damaged nails due to the use of drying products or external factors. It is also ideal for toenails, which are generally quite hard. Instructions for Use: Use twice a week on clean nails, ideally before going to bed to allow this serum to work overnight. Apply with the brush over the entire nail surface after removing any remaining polish or cream. Massage in with your thumb and allow it to penetrate. If you continue with your manicure, be sure to remove any excess product with a tissue.