What is the typical water content of nails?

• A. 5-10%
• B. 15-25%
• C. 30-35%
• D. 40-50%

Answer: (B)

The typical water content of nails falls within the range of 15-25%. This moisture level is crucial for maintaining nail health and integrity. Nails are made up of keratin, a protein that requires a certain amount of hydration to remain flexible and resilient. If the water content is too low, nails can become dry, brittle, and more prone to breakage or splitting. Conversely, if the water content is excessively high, it can lead to nail swelling and deformity. This balance is essential for preserving the overall strength and functionality of the nails, which is why the 15-25% range is recognized as the standard in healthy nail composition.