Texas Cosmetology Operator Written ExamNail Care ServicesEasy
A client complains of brittle nails that often split and break. What common deficiency is most likely contributing to this condition?
- AIron deficiency
- BVitamin C deficiency
- CBiotin deficiency
- DVitamin D deficiency
Show answer & explanationAnswer & explanation
Correct answer: C. Biotin deficiency
Biotin, also known as Vitamin B7, is a crucial nutrient for healthy nail growth and strength. A deficiency in biotin can lead to brittle, thin, and easily broken nails.
Why the other options are wrong
- A. Iron deficiency can cause spoon-shaped nails (koilonychia) and pallor, not typically just brittleness.
- B. Vitamin C is important for collagen production and overall health, but not primarily linked to brittle nails.
- D. Vitamin D is essential for bone health and calcium absorption, not directly for nail brittleness.
Biotin and Nail Health
Biotin (Vitamin B7) is a water-soluble vitamin essential for metabolic processes and contributes significantly to the strength and health of hair and nails.
- Deficiency can cause brittle nails.
- Supports keratin production.
- Found in foods like eggs, nuts, and whole grains.
Memory trick: Brittle Nails? Biotin's Your Buddy!