Nevada State Board Nail Technician Theory Practice Exam

Nutrition and hydration directly influence nail health because nails rely on nutrients delivered through the bloodstream to grow and stay strong. Adequate protein provides the building blocks for keratin, while vitamins and minerals like biotin, zinc, iron, and vitamins A and C support nail growth and resilience. Staying well hydrated helps keep nails flexible and the surrounding skin healthy, reducing brittleness and splitting. When nutrition is lacking or fluids are insufficient, nails often become brittle, slow to grow, or show ridges and dull appearance. While genetics or climate can play a role, daily nutrition and hydration are the most actionable environmental factors you can manage to support healthier nails.