What type of emulsion is represented by a lotion?

A lotion is classified as an oil-in-water emulsion, which consists of droplets of oil dispersed in a continuous water phase. This type of emulsion allows for a smooth application on the skin and is typically lightweight and easily absorbed. Emulsions are essential in pharmaceutical formulations, especially in lotions, as they help deliver medications or active ingredients effectively while providing hydration or cosmetic benefits.

In contrast, water-in-oil emulsions contain water droplets dispersed in an oil phase and typically produce a thicker or greasier texture, which is less common for lotions. A suspension emulsion does not pertain to a stable blend of oil and water, but rather refers to solid particles suspended in a liquid. Thick emulsions are generally more viscous and might be less suitable for the lightweight, easy-to-spread nature expected from a lotion. Thus, the characteristics of oil-in-water emulsions align perfectly with the formulation and expected behavior of lotions.