Which of the following helps reduce nail brittleness when applied before bedtime?

Applying oils, creams, or lotion before bedtime is beneficial for reducing nail brittleness because these products are formulated to hydrate and nourish the nails and surrounding skin. They typically contain ingredients that help to moisturize the nail bed and cuticles, creating a protective barrier that prevents water loss. This added moisture makes the nails more flexible and less prone to breaking or chipping.

In contrast, water alone does not provide the sustained hydration needed to combat brittleness effectively. While it is essential for overall nail health, it needs to be combined with other moisturizing agents to have a lasting impact. Nail polish remover and alcohol-based solutions tend to dry out the nails due to their high solvent content, leading to increased brittleness and weakening of the nail structure. Therefore, using oils, creams, or lotion is the most effective method for providing the necessary moisture and nutrients to promote healthier, less brittle nails.