The hands are an element of seduction, it should be maintained regularly with the help of the manicure products. If we are not careful, the nails can become fragile and brittle. When they split, are soft, break or turn yellow, how can they be treated to strengthen them? Follow us! There can be several reasons why nails break. If you don’t consume enough vitamins A and B, iron, calcium, protein or zinc, there is a good chance that the nails will become fragile and yellow. A lack of calcium generally produces decalcification. Using chemicals without protection can also be harmful to the health of the keratin that makes up the nails. Cold, heat, stress and fatigue are also sources of weaken...