What common ingredient in lotions provides moisture?

The correct choice highlights that water or oils are common ingredients in lotions that effectively provide moisture. Water is often a primary component in many lotions, serving as a solvent that dissolves other ingredients and delivering hydration to the skin. Oils, on the other hand, help to seal in moisture and create a barrier that prevents water loss, thereby keeping the skin hydrated over time.

In contrast, alcohol can be drying to the skin, as it tends to evaporate quickly and can strip the skin of natural moisture. Fragrance is typically included in lotions for scent but does not play a role in moisturizing the skin. Pigments are added primarily for color and do not contribute to hydration. Thus, water and oils are essential for achieving the moisturizing effects that lotions provide.