Which of the following can penetrate the nail plate or skin to increase flexibility of the natural nail?

• A. Soap and water
• B. Oil and lotion
• C. Acrylic and gel
• D. Alcohol and sanitizer

Answer: (B)

The correct answer, which is oil and lotion, is based on their ability to penetrate the nail plate and skin, thereby enhancing the flexibility of the natural nail. Oils, such as jojoba oil or vitamin E oil, and lotions often contain ingredients that can moisturize and nourish both the skin and the nail. When applied, they can penetrate the outer layers of the nail and hydrate the underlying structures, which in turn can help to improve flexibility and reduce brittleness.

In contrast, soap and water primarily serve to clean, but they do not have the capacity to penetrate and deeply moisturize. Acrylic and gel products are used for enhancements and do not contribute to the natural flexibility of the nail; instead, they harden and may sometimes result in rigidity. Alcohol and sanitizer typically contain high concentrations of alcohol that can dry out the skin and nails rather than provide moisture or flexibility. Therefore, oil and lotion are the most effective options for increasing the flexibility of natural nails through penetration and hydration.