- Slit or brittle nails
These types of nails are a result of vitamin B deficiency, as well as lack of moisture in the body. Take calcium supplements, gelatine and colloid minerals. It is not recommended for pregnant women.
- Vertical ridges
Vertical ridges may appear as a result of malnutrition and vitamin and mineral deficiency. Polish your nails 2 to 3 times a day with almond oil or chamois butter.