Nails turn brittle due to chipping or cracking with excessive use of chemicals, nail paints and dish washes. Nails may also turn brittle due to swimming and aging. Certain conditions like psoriasis, eczemia may deteriorate nail health. Iron deficiency, anemia weakens the skin surface. Nail polishes and alcohol based sanitizers should be avoided and instead moisturizer based hand washes should be used. Cuticle creams and oil keep the dryness at bay. Biotin supplements boost nail growth. Keeping nails short would avoid infections as well as help in maintaining them easily.