Very dry, too hard or brittle nails have their origin, in many cases, in exposure to external aggressions (such as the use of strong chemicals, frequent work in contact with water, overexposure to the sun...) but also internal factors (age, diet , hereditary factors…). MAVA-FLEX is a balanced concentrate based on urea, saccharides and hyaluronic acid, calcium, lemon extract and vitamin B5. Ensures optimal hydration of the nail, restores it and maintains its flexibility. Reinforces the structure of fragile or damaged nails due to the use of drying products or external factors. It's also great for toenails, which are generally quite hard. How to 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 surface of the nail after removing any remaining nail polish or cream. Massage with the help of your thumb and let it penetrate. If you continue with your manicure, make sure to remove the excess product with a tissue.